Antibiotici Naturali e Semisintetici
Gli antibiotici naturali e semisintetici sono caratterizzati da strutture chimiche con anelli eterociclici e gruppi funzionali attivi che inibiscono la crescita dei microrganismi. Le loro strutture permettono loro di interagire con i processi vitali dei batteri, rendendoli utili nel trattamento delle infezioni batteriche. Gli antibiotici semisintetici possono essere modificati per migliorare lo spettro di attività o la resistenza alla degradazione.
Presso CymitQuimica, offriamo antibiotici naturali e semisintetici di alta qualità per la ricerca in microbiologia e lo sviluppo farmaceutico.
Trovati 6343 prodotti di "Antibiotici Naturali e Semisintetici"
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Bis(dimethylaminoethyl) Ether Dihydrochloride (2,2'-oxybis(N,N-dimethylethan-1-amine), hydrochloride)
CAS:Amino-alcohols, other than those containing more than one kind of oxygen function, their ethers and esters, salts thereof, nesoiFormula:C8H20N2O·2HClColore e forma:White Off-White SolidPeso molecolare:160.15756Erythromycin Stearate
CAS:Erythromycin and its derivatives; salts thereofFormula:C37H67NO13·C18H36O2Colore e forma:PowderPeso molecolare:1018.59 g/molCefoxitin System Suitability Mixture
Diagnostic or lab reagents on a backing, prepared diagnostic or lab reagents whether or not on a backing, whether or not in the form of kits, nesoiColore e forma:White PowderPolymyxin B Sulfate
CAS:Antibiotics nesoiFormula:C56H98N16O13C55H96N16O13C55H96N16O13C56H98N16O13Colore e forma:White Off-White PowderPeso molecolare:4782.96841Neomycin Sulfate
CAS:Antibiotics nesoiFormula:C23H46N6O13·xH2SO4Colore e forma:White Light Yellow PowderPeso molecolare:614.31229Piperacillin
CAS:Penicillins and their derivatives with a penicillanic acid structure and salts thereof, nesoiFormula:C23H27N5O7S·H2OColore e forma:White Off-White PowderPeso molecolare:517.16312Nafcillin System Suitability Mixture (This mixture contains nafcillin sodium and ethoxynaphthoic acid)
Diagnostic or lab reagents on a backing, prepared diagnostic or lab reagents whether or not on a backing, whether or not in the form of kits, nesoiColore e forma:Off-White PowderDimethylethylamine Hydrochloride (N,N-dimethylethanamine, hydrochloride)
CAS:Acyclic monoamines and their derivatives, nesoiFormula:C4H11N·HClColore e forma:White Off-White SolidPeso molecolare:73.08915Lidocaine Hydrochloride
CAS:Aromatic cyclic amides (including cyclic carbamates) and their derivatives; salts thereofFormula:C14H22N2O·HCl·H2OColore e forma:White Crystalline PowderPeso molecolare:288.16046Ethylpyrazinediethanol (2,2'-(3-ethylpyrazine-2,5-diyl)bis(ethan-1-ol))
CAS:Aromatic or modified aromatic heterocyclic compounds withnitrogen hetero-atom(s) only nesoiFormula:C10H16N2O2Colore e forma:Pale Yellow SolidPeso molecolare:196.12118Clarithromycin Related Compound A (6,11-di-O-methylerythromycin A)
CAS:Lactones nesoiFormula:C39H71NO13Colore e forma:PowderPeso molecolare:761.49254Piperacillin Sulfoxide ((2S,5R,6R)-6-((R)-2-(4-ethyl-2,3-dioxopiperazine-1-carboxamido)-2-phenylacetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 4-oxide)
Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoiFormula:C23H27N5O8SColore e forma:White Off-White PowderPeso molecolare:533.15803Pimecrolimus
CAS:Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoiFormula:C43H68ClNO11Colore e forma:White Off-White PowderPeso molecolare:809.44809Erythromycin
CAS:Erythromycin and its derivatives; salts thereofFormula:C37H67NO13ErythromycinAColore e forma:White Light Yellow PowderPeso molecolare:733.94 Erythromycin ANafcillin Sodium
CAS:Penicillins and their derivatives with a penicillanic acid structure and salts thereof, nesoiFormula:C21H21N2NaO5S·H2OColore e forma:White Light Yellow Crystalline PowderPeso molecolare:454.11745Erythromycin C
CAS:Erythromycin and its derivatives; salts thereofFormula:C36H65NO13Colore e forma:White PowderPeso molecolare:719.44559Lidocaine Related Compound H (2-Chloro-N-(2,6-dimethylphenyl)acetamide)
CAS:Aromatic cyclic amides (including cyclic carbamates) and their derivatives; salts thereofFormula:C10H12ClNOColore e forma:White Off-White PowderPeso molecolare:197.06074Cefdinir
CAS:<p>Antibiotics nesoi</p>Formula:C14H13N5O5S2·H2OColore e forma:Off-White Cream Crystalline PowderPeso molecolare:395.03581Clarithromycin Furanyl Analog
CAS:Lactones, nesoiFormula:C30H51NO8Colore e forma:White Off-White SolidPeso molecolare:553.36147Cilastatin Ammonium Salt
CAS:Organo-sulfur compounds, nesoiFormula:C16H25N2O5S·NH4Colore e forma:White PowderPeso molecolare:375.18279Bacitracin Zinc
CAS:Antibiotics nesoiFormula:C66H101N17O16SZn(BacitracinAZinc)C65H99N17O16SZn(BacitracinB1B2orB3Zinc)Colore e forma:White Tan Light Brown PowderPeso molecolare:1483.66243Endotoxin (11,000 USP Endotoxin Units)
Human blood; animal blood prepared for therapeutic, prophylatic or diagnostic uses; antisera and other blood fractions, etc. nesoiColore e forma:White Lyophilized CakeBis(2-methylaminoethyl) Ether (2,2'-oxybis(N,N-dimethylethan-1-amine))
CAS:<p>Amino-alcohols, other than those containing more than one kind of oxygen function, their ethers and esters, salts thereof, nesoi</p>Formula:C8H20N2OColore e forma:Colorless LiquidPeso molecolare:160.26 g/molBis(2-methylaminoethyl) Ether Hydrochloride (2,2'-oxybis(N-methylethan-1-amine), hydrochloride)
CAS:Amino-alcohols, other than those containing more than one kind of oxygen function, their ethers and esters, salts thereof, nesoiFormula:C6H16N2O·2HClColore e forma:White Off-White SolidPeso molecolare:132.12626Imipenem Monohydrate
CAS:Antibiotics nesoiFormula:C12H17N3O4S·H2OColore e forma:White Off-White Crystalline PowderPeso molecolare:317.10454Clarithromycin
CAS:Erythromycin and its derivatives; salts thereofFormula:C38H69NO13Colore e forma:White Off-White PowderPeso molecolare:747.47689Clavulanate Lithium
CAS:Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoiFormula:C8H8NO5·LiColore e forma:White Light Yellow PowderPeso molecolare:205.05625Pimecrolimus System Suitability Mixture (A mixture containing Pimecrolimus, Pimecrolimus triene analog, Desmethylpimecrolimus, and other impurities)
Diagnostic or lab reagents on a backing, prepared diagnostic or lab reagents whether or not on a backing, whether or not in the form of kits, nesoiColore e forma:Off-White PowderDeoxystreptamine Kanosaminide (6-O-(3-Amino-3-deoxy-α-D-glucopyranosyl)-2-deoxy-D-streptamine)
CAS:Heterocyclic compounds with oxygen hetero-atom(s) only, nesoiFormula:C12H25N3O7Colore e forma:Off-White SolidPeso molecolare:323.16925Posaconazole
CAS:Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoiFormula:C37H42F2N8O4Colore e forma:White PowderPeso molecolare:700.32971Amoxicillin Related Compound D ((4S)-2-{[(R)-2-amino-2-(4-hydroxyphenyl)acetamido](carboxy)methyl}-5,5-dimethylthiazolidine-4-carboxylic acid, monosodium salt)
CAS:Compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structureFormula:C16H20NaN3O6SColore e forma:White PowderPeso molecolare:405.09705TEMED Dihydrochloride (N1,N1,N2,N2-tetramethylethane-1,2-diamine, hydrochloride)
CAS:Other acyclic polyamines and their derivatives; salts thereofFormula:C6H16N2·2HClColore e forma:White Off-White SolidPeso molecolare:116.13135Maltotriose
CAS:Sugars, chemically pure, other than sucrose, lactose, maltose, glucose and fructose; sugar ethers and sugar esters, and their salts, nesoiFormula:C18H32O16Colore e forma:White PowderPeso molecolare:504.16903Piperacillin Related Compound E (1-ethylpiperazine-2,3-dione)
CAS:Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure, nesoiFormula:C6H10N2O2Colore e forma:White Pale Yellow Crystalline PowderPeso molecolare:142.07423Anhydroclarithromycin
CAS:Lactones, nesoiFormula:C38H67NO12Colore e forma:White Off-White PowderPeso molecolare:729.46633Amoxicillin
CAS:Penicillins and their derivatives with a penicillanic acid structure and salts thereof, nesoiFormula:C16H19N3O5S·3H2OColore e forma:White Crystalline PowderPeso molecolare:419.13624Pyrrolic acid Derivative (4-(2-hydroxyethyl)-1H-pyrrole-3-carboxylic acid)
CAS:Heterocyclic compounds (excluding aromatic or modified aromatic) withnitrogen hetero-atom(s) only nesoiFormula:C7H9NO3Colore e forma:Off-White SolidPeso molecolare:155.05824Erythromycin Lactobionate
CAS:Erythromycin and its derivatives; salts thereofFormula:C37H67NO13·C12H22O12Colore e forma:White Off-White PowderPeso molecolare:1091.57237Tazobactam
CAS:Penicillins and their derivatives with a penicillanic acid structure and salts thereof, nesoiFormula:C10H12N4O5SColore e forma:White Pale Yellow PowderPeso molecolare:300.05284Erythromycin Oxime
CAS:Lactones, nesoiFormula:C37H68N2O13Colore e forma:White Off-White SolidPeso molecolare:748.47214N-Desmethylclarithromycin Oxime
CAS:Lactones, nesoiFormula:C37H68N2O13Colore e forma:White Off-White SolidPeso molecolare:748.47214Erythromycin Ethylsuccinate
CAS:Erythromycin and its derivatives; salts thereofFormula:C43H75NO16Colore e forma:White PowderPeso molecolare:861.50859Cefdinir Related Compound B ((6R,7R)-7-[2-(2-amino-4-thiazolyl)acetamido]-8-oxo-3-vinyl-5-thia-1-azabicyclo[4,2,0]oct-2-ene-2-carboxylic acid)
CAS:Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoiFormula:C14H14N4O4S2Colore e forma:Yellow Orange Light Brown PowderPeso molecolare:366.04565Decladinosyl Clarithromycin (3-O-De(2,6-dideoxy-3-C-methyl-3-O-methyl-α-L-ribo-hexopyranosyl)-6-O-methylerythromycin; 3-O-Decladinosyl-6-O-methylerythromycin A)
CAS:Lactones, nesoiFormula:C30H55NO10Colore e forma:White Off-White SolidPeso molecolare:589.3826Erythromycin Related Compound N (N-Demethylerythromycin A)
CAS:Lactones nesoiFormula:C36H65NO13Colore e forma:White PowderPeso molecolare:719.44559Maltose Monohydrate
CAS:Sugars and sugar syrups, including chemically pure maltose in solid form, artificial honey, whether or not mixed with natural honey, caramel, nesoiFormula:C12H22O11·H2OColore e forma:White PowderPeso molecolare:360.12678Clarithromycin Identity
CAS:Erythromycin and its derivatives; salts thereofFormula:C38H69NO13Colore e forma:White Off-White PowderPeso molecolare:747.47689Thiazolylacetyl Glycine Oxime Acetal ((Z)-2-(2-Aminothiazol-4-yl)-N-(2,2-dihydroxyethyl)-2-(hydroxyimino)acetamide)
CAS:Compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structureFormula:C7H10N4O4SColore e forma:Yellow Pale Yellow SolidPeso molecolare:246.04228Fluorometholone Acetate
CAS:Halogenated derivatives of adrenal cortical hormonesFormula:C24H31FO5Colore e forma:White PowderPeso molecolare:418.21555Fluorometholone
CAS:Halogenated derivatives of adrenal cortical hormonesFormula:C22H29FO4Colore e forma:White Light Yellow Crystalline PowderPeso molecolare:376.204992,3-Dimethyl-2,3-butanediamine Dihydrochloride (2,3-dimethylbutane-2,3-diamine, hydrochloride)
CAS:Other acyclic polyamines and their derivatives; salts thereofFormula:C6H16N2·2HClColore e forma:White Off-White SolidPeso molecolare:116.131356-O-Methylerythromycin A 9-(O-methyloxime)
CAS:Lactones, nesoiFormula:C39H72N2O13Colore e forma:White Off-White SolidPeso molecolare:776.50344Cefdinir Related Compound A ((2R)-2-[(Z)-2-(2-Aminothiazol-4-yl)-2-(hydroxyimino)acetamido]-2-[(2RS,5RS)-5-methyl-7-oxo-2,4,5,7-tetrahydro-1H-furo[3,4-d][1,3]thiazin-2-yl]acetic acid)
CAS:Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoiFormula:C14H15N5O6S2Colore e forma:Light Yellow Dark Yellow Brown PowderPeso molecolare:413.04638Pyrazinediethanol (2,2'-(pyrazine-2,5-diyl)bis(ethan-1-ol))
CAS:Aromatic or modified aromatic heterocyclic compounds withnitrogen hetero-atom(s) only nesoiFormula:C8H12N2O2Colore e forma:Off-White SolidPeso molecolare:168.08988Posaconazole Related Compound A
CAS:Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoiFormula:C37H42F2N8O4Colore e forma:White PowderPeso molecolare:700.32971Erythromycin System Suitability Mixture
Diagnostic or lab reagents on a backing, prepared diagnostic or lab reagents whether or not on a backing, whether or not in the form of kits, nesoiColore e forma:White Powdertert-Octylamine (2,4,4-trimethylpentan-2-amine)
CAS:Acyclic monoamines and their derivatives, nesoiFormula:C8H19NColore e forma:Colorless LiquidPeso molecolare:129.15175Neomycin B
CAS:Aminoglycoside antibioticsFormula:C23H46N6O13·xH2SO4Colore e forma:White Off-White Fine PowderPeso molecolare:614.65 (free base)Neomycin Sulfate System Suitability Mixture
Aminoglycoside antibioticsFormula:C23H46N6O13·2H2SO4Colore e forma:White Light Yellow PowderPeso molecolare:908.89Amoxicillin Related Compound A ((2S,5R,6R)-6-Amino-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid)
CAS:Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoiFormula:C8H12N2O3SColore e forma:White Cream PowderPeso molecolare:216.05686Neomycin A
CAS:Sugars, chemically pure, other than sucrose, lactose, maltose, glucose and fructose; sugar ethers and sugar esters, and their salts, nesoiFormula:C12H26N4O6(freebase)Colore e forma:Off-White Yellow PowderPeso molecolare:322.18523Cefoxitin
CAS:Antibiotics nesoiFormula:C16H17N3O7S2Colore e forma:White Off-White Crystalline PowderPeso molecolare:427.05079Erythromycin B
CAS:Erythromycin and its derivatives; salts thereofFormula:C37H67NO12Colore e forma:White PowderPeso molecolare:717.46633Ropivacaine Related Compound A (2,6-dimethylaniline hydrochloride)
CAS:Aromatic monoamines and their derivatives, salts thereof, nesoiFormula:C8H11N·ClHColore e forma:White Crystalline PowderPeso molecolare:157.06583Tazobactam Related Compound A ((2S,3S)-2-Amino-3-methyl-3-sulfino-4-(1H-1,2,3-triazol-1-yl)butyric acid)
CAS:Heterocyclic compounds with nitrogen hetero-atom(s) only, excluding aromatic or modified aromaticFormula:C7H12N4O4SColore e forma:Pale Yellow PowderPeso molecolare:248.05793Clarithromycin Z-Oxime
CAS:Lactones, nesoiFormula:C38H70N2O13Colore e forma:White Off-White SolidPeso molecolare:762.48779Amoxicilloic amoxilloic acid dimers 1, 2, 3, and 4
CAS:Compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structureFormula:C31H40N6O9S2Colore e forma:White Off-White SolidPeso molecolare:704.22982Piperacillin sodium
CAS:<p>(CL227193) )binds to and inactivates penicillin-binding proteins (PBPs), enzymes located on the inner membrane of the bacterial cell wall, resulting in the</p>Formula:C23H26N5NaO7SPurezza:99.66%Colore e forma:SolidPeso molecolare:539.54Clindamycin phosphate
CAS:<p>Clindamycin phosphate: a broad-spectrum chlorinated antibiotic, modified from lincomycin, used topically.</p>Formula:C18H34ClN2O8PSPurezza:98.15%Colore e forma:White SolidPeso molecolare:504.96Fleroxacin
CAS:<p>Fleroxacin (RO 23-6240) is a broad-spectrum antimicrobial fluoroquinolone. It strongly inhibits the DNA-supercoiling activity of DNA gyrase.</p>Formula:C17H18F3N3O3Purezza:99.58% - 99.79%Colore e forma:White Needle-Like CrystalsPeso molecolare:369.34Capreomycin sulfate
CAS:<p>Capreomycin sulfate (Capastat sulfate) , a cyclic peptide antibiotic, binds to the 70S ribosomal unit leading to inhibition of protein synthesis.</p>Formula:C25H46N14O11SPurezza:98% - 99.54%Colore e forma:White PowderPeso molecolare:752.76Amoxicillin trihydrate
CAS:<p>Amoxicillin trihydrate is a broad-spectrum antibiotic that inactivates PBP 1A, disrupting bacterial cell wall synthesis and causing cell lysis.</p>Formula:C16H25N3O8SPurezza:98.9% - 99.56%Colore e forma:White Solid PowderPeso molecolare:419.45Lasalocid sodium
CAS:<p>Lasalocid sodium, an antibiotic from Streptomyces lasaliensis, regulates calcium in muscles and is used as a poultry coccidiostat.</p>Formula:C34H53NaO8Purezza:97.08% - 98.49%Colore e forma:SolidPeso molecolare:612.77Meropenem
CAS:<p>Meropenem (SM 7338), a broad-spectrum IV antibiotic, treats severe infections but may cause mild liver enzyme elevations or rare cholestatic injury.</p>Formula:C17H25N3O5SPurezza:99.66%Colore e forma:White Or Almost White Powder CompliesPeso molecolare:383.46Tobramycin
CAS:<p>Tobramycin (NSC-180514) is an aminoglycoside, broad-spectrum antibiotic produced by Streptomyces tenebrarius.</p>Formula:C18H37N5O9Purezza:99.21% - 99.87%Colore e forma:White SolidPeso molecolare:467.51Cefmenoxime hydrochloride
CAS:<p>Cefmenoxime hydrochloride: cephalosporin antibiotic, IV/IM, targets gram-positive/negative bacteria, beta-lactamase resistant, effective, low side effects.</p>Formula:C32H35ClN18O10S6Purezza:98.02% - 98.41%Colore e forma:SolidPeso molecolare:1059.58Framycetin sulfate
CAS:<p>Framycetin sulfate (Neomycin Sulphate B) belongs to aminoglycoside class of antibiotics that contain two or more aminosugars connected by glycosidic bonds.</p>Formula:C23H52N6O25S3Purezza:99.79% - 99.89%Colore e forma:White To Yellowish PowderPeso molecolare:908.86Imipenem monohydrate
CAS:<p>Imipenem monohydrate (Imipenem) is a β lactam antibiotic. Imipenem monohydrate acts on the bacterial cell wall. Cost-effective and quality-assured.</p>Formula:C12H19N3O5SPurezza:98.77% - 99.94%Colore e forma:Off-White Nonhygroscopic CrytalsPeso molecolare:317.36Streptomycin sulfate
CAS:<p>Streptomycin sulfate (Phytomycin) is a sulfate salt of streptomycin that is a protein synthesis inhibitor.</p>Formula:C21H39N7O12H2SO4Purezza:99.84% - 99.86%Colore e forma:White To Off-White PowderPeso molecolare:728.68Lomefloxacin hydrochloride
CAS:<p>Lomefloxacin hydrochloride (Okacyn) is a fluoroquinolone that inhibits DNA replication in bacteria, causing cell death.</p>Formula:C17H20ClF2N3O3Purezza:99.43% - 99.75%Colore e forma:White PowderPeso molecolare:387.81Enrofloxacin
CAS:<p>Enrofloxacin (BAY-Vp2674) is a veterinary antibacterial agent, used in poultry.</p>Formula:C19H22FN3O3Purezza:99.43% - >99.99%Colore e forma:Pale Yellow CrystalsPeso molecolare:359.39Cefixime
CAS:<p>Cefixime is a broad-spectrum third-gen cephalosporin antibiotic, stable against beta-lactamases and more effective on gram-negative bacteria.</p>Formula:C16H15N5O7S2Purezza:97.29%Colore e forma:White To Off White Powder Or Off White Crystal PowderPeso molecolare:453.45Cefaclor monohydrate
CAS:<p>Cefaclor monohydrate (Cefaclorum) is a beta-lactam, second-generation cephalosporin antibiotic with bactericidal activity.</p>Formula:C15H16ClN3O5SPurezza:97.36% - 99.9%Colore e forma:White Crystaling PowderPeso molecolare:385.82Dirithromycin
CAS:<p>Dirithromycin (LY237216), a macrolide antibiotic, treats bacterial infections like bronchitis and pneumonia.</p>Formula:C42H78N2O14Purezza:98% - 98.89%Colore e forma:CrystalsPeso molecolare:835.07Emamectin Benzoate
CAS:<p>Emamectin Benzoate (MK-244), by binding gamma-aminobutyric acid (GABA) receptor and glutamate-gated chloride channels disrupting nerve signals within arthropods</p>Formula:C56H81NO15Purezza:98.68%Colore e forma:SolidPeso molecolare:1008.256Tigecycline
CAS:<p>Tigecycline (GAR-936), a broad-spectrum glycylcycline, disrupts protein synthesis by binding the 30S ribosomal subunit.</p>Formula:C29H39N5O8Purezza:98.81% - >99.99%Colore e forma:PowderPeso molecolare:585.65Doripenem monohydrate
CAS:<p>Doripenem monohydrate (S 4661 monohydrate) is a broad-spectrum injectable antibiotic, used for Gram-positive, Gram-negative and anaerobic pathogens.</p>Formula:C15H24N4O6S2·H2OPurezza:98.19% - 99%Colore e forma:White PowerPeso molecolare:438.52Tetracycline
CAS:<p>Tetracycline (Tetracyclin) is a broad-spectrum antibiotic. Tetracycline is commonly used in anti-infective studies. Cost-effective and quality-assured.</p>Formula:C22H24N2O8Purezza:92.65% - 98.18%Colore e forma:Light Yellow CrystalPeso molecolare:444.43Lovastatin
CAS:<p>Lovastatin (MK-803) is an HMG-CoA reductase inhibitor. Lovastatin lowers cholesterol and is used as a lipid-lowering agent. Cost-effective and quality-assured.</p>Formula:C24H36O5Purezza:99.66% - 99.92%Colore e forma:The Substance Is A White-Yellowish To Yellow Powder Solid PowderPeso molecolare:404.54
![Amoxicillin Related Compound A ((2S,5R,6R)-6-Amino-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]he…](/_next/image/?url=https%3A%2Fstatic.cymitquimica.com%2Fproducts%2F45%2Fthumb-webp%2F1031514.webp&w=3840&q=75)
