Active pharmaceutical ingredient (API) impurities for research

All products contained in this category are intended for laboratory use only, and are not meant for human consumption.

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Product data	Purity	Price range	Estimated delivery
trans-4-(6,8-Dibromoquinazolin-3(4H)-yl)cyclohexanol Hydrochloride REF: 86-MM0005CAS: 2356152-56-0	- - -	1,467.00 €	Mon 23 Dec 24
Modafinil Related Compound A (2-[(diphenylmethyl)sulfinyl]acetic acid) REF: 45-1445346CAS: 63547-24-0	- - -	1,292.00 €	Fri 27 Dec 24
Lorazepam Related Compound D (6-Chloro-4-(o-chlorophenyl)-2-quinazolinecarboxylic Acid) REF: 45-1370350CAS: 54643-79-7	- - -	1,683.00 €	Fri 27 Dec 24
Uracil REF: 45-1705753CAS: 66-22-8	- - -	444.00 €	Fri 27 Dec 24
Nebivolol Related Compound B (See USP Certificate for full Chemical Name) REF: 45-1457866	- - -	1,552.00 €	Fri 27 Dec 24
Allopurinol Related Compound D (Ethyl 5-amino-1H-pyrazole-4-carboxylate) REF: 45-1013046CAS: 6994-25-8	- - -	1,371.00 €	Fri 27 Dec 24
Diethyltoluamide Related Compound A (N,N-Diethyl-4-toluamide) REF: 45-1197018CAS: 2728-05-4	- - -	1,552.00 €	Fri 27 Dec 24
Nepafenac Related Compound A (2-{2-Amino-3-[hydroxy(phenyl)methyl]phenyl}acetamide) REF: 45-1460328CAS: 1246956-18-2	- - -	1,292.00 €	Fri 27 Dec 24
Dopamine Related Compound B (4-(2-Aminoethyl)-2-methoxyphenol hydrochloride) REF: 45-1225226CAS: 1477-68-5	- - -	1,469.00 €	Fri 27 Dec 24
Mafenide Related Compound A (4-Formylbenzenesulfonamide) REF: 45-1286209CAS: 3240-35-5	- - -	1,477.00 €	Fri 27 Dec 24
Thimerosal Related Compound A (2,2'-Disulfanediyldibenzoic acid) REF: 45-1659001CAS: 119-80-2	- - -	1,441.00 €	Fri 27 Dec 24
2-Amino-5-chlorobenzophenone REF: 45-1022808CAS: 719-59-5	- - -	1,477.00 €	Fri 27 Dec 24
Spironolactone Related Compound D ((2'R)-7α-(Acetyldisulfanyl)-3',4'-dihydro-5'H-spiro[androst-4-ene-17,2'-furan]-3,5'-dione) REF: 45-1619040	- - -	1,442.00 €	Fri 27 Dec 24
Oxazepam Related Compound B (7-Chloro-2-oxo-5-phenyl-2,3-dihydro-1H-benzodiazepin-3-yl acetate) REF: 45-1483028CAS: 1824-74-4	- - -	815.00 €	Fri 27 Dec 24
Calcipotriene Related Compound C ((5E,7E,22E,24S)-24-Cyclopropyl-9,10-secochola-5,7,10(19),22-tetraene-1α,3β,24-triol) REF: 45-1086152CAS: 113082-99-8	- - -	3,219.00 €	Fri 27 Dec 24
Cefaclor δ-3 Isomer REF: 45-1096917CAS: 152575-13-8	- - -	1,511.00 €	Fri 27 Dec 24
Tinidazole Related Compound A (2-methyl-5-nitroimidazole) REF: 45-1667530CAS: 696-23-1	- - -	1,477.00 €	Fri 27 Dec 24
Levalbuterol Related Compound F ((R)-1-[4-(Benzyloxy)-3-(hydroxymethyl)phenyl]-2-(tert-butylamino)ethan-1-ol) REF: 45-1358842CAS: 174607-68-2	- - -	1,552.00 €	Fri 27 Dec 24
Olanzapine Related Compound C (2-Methyl-4-(4-methylpiperazin-1-yl)-10H-benzo[b]thieno[2,3-e][1,4]diazepine 4'-N-oxide) REF: 45-1478334CAS: 174794-02-6	- - -	1,371.00 €	Fri 27 Dec 24
Olopatadine Related Compound C (11-Oxo-6,11-dihydrodibenzo[b,e]oxepin-2-yl acetic acid) REF: 45-1478436CAS: 55453-87-7	- - -	1,371.00 €	Fri 27 Dec 24

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trans-4-(6,8-Dibromoquinazolin-3(4H)-yl)cyclohexanol Hydrochloride

CAS:2356152-56-0

Formula:

C₁₄H₁₆Br₂N₂OClH

Molecular weight:

424.56

Ref: 86-MM0005

100mg 1,467.00 €

Estimated delivery in United States, on Monday 23 Dec 2024

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Modafinil Related Compound A (2-[(diphenylmethyl)sulfinyl]acetic acid)

CAS:63547-24-0

Other aromatic organo-sulfur compounds (excluding pesti

Formula:

C₁₅H₁₄O₃S

Color and Shape:

Off-White Powder

Molecular weight:

274.06637

Ref: 45-1445346

Estimated delivery in United States, on Friday 27 Dec 2024

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Lorazepam Related Compound D (6-Chloro-4-(o-chlorophenyl)-2-quinazolinecarboxylic Acid)

CAS:54643-79-7

Aromatic or modified aromatic drugs with nitrogen heter

Formula:

C₁₅H₈Cl₂N₂O₂

Color and Shape:

White Powder

Molecular weight:

317.99628

Ref: 45-1370350

Estimated delivery in United States, on Friday 27 Dec 2024

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Uracil

CAS:66-22-8

Compounds containing a pyrimidine ring (whether or not

Formula:

C₄H₄N₂O₂

Color and Shape:

White Off-White Powder

Molecular weight:

112.02728

Ref: 45-1705753

Estimated delivery in United States, on Friday 27 Dec 2024

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Nebivolol Related Compound B (See USP Certificate for full Chemical Name)

Aromatic pesticides with oxygen hetero

Formula:

C₂₂H₂₅F₂NO₄·HCl

Color and Shape:

Powder

Molecular weight:

441.15184

Ref: 45-1457866

Estimated delivery in United States, on Friday 27 Dec 2024

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Allopurinol Related Compound D (Ethyl 5-amino-1H-pyrazole-4-carboxylate)

CAS:6994-25-8

Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure nesoi

Formula:

C₆H₉N₃O₂

Color and Shape:

White Light Yellow Crystalline Powder

Molecular weight:

155.06948

Ref: 45-1013046

Estimated delivery in United States, on Friday 27 Dec 2024

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Diethyltoluamide Related Compound A (N,N-Diethyl-4-toluamide)

CAS:2728-05-4

Aromatic cyclic amides (including cyclic carbamates) and their derivatives; salts thereof

Formula:

C₁₂H₁₇NO

Color and Shape:

White Crystals

Molecular weight:

191.13101

Ref: 45-1197018

Estimated delivery in United States, on Friday 27 Dec 2024

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Nepafenac Related Compound A (2-{2-Amino-3-[hydroxy(phenyl)methyl]phenyl}acetamide)

CAS:1246956-18-2

Aromatic cyclic amides (including cyclic carbamates) and their derivatives; salts thereof

Formula:

C₁₅H₁₆N₂O₂

Color and Shape:

White Solid

Molecular weight:

256.12118

Ref: 45-1460328

Estimated delivery in United States, on Friday 27 Dec 2024

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Dopamine Related Compound B (4-(2-Aminoethyl)-2-methoxyphenol hydrochloride)

CAS:1477-68-5

Amino-naphthols and other amino-phenols, their ethers and esters, other than those cont more than one …

Formula:

C₉H₁₃NO₂·HCl

Color and Shape:

Off-White Solid

Molecular weight:

203.07131

Ref: 45-1225226

Estimated delivery in United States, on Friday 27 Dec 2024

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Mafenide Related Compound A (4-Formylbenzenesulfonamide)

CAS:3240-35-5

Sulfonamides, nesoi

Formula:

C₇H₇NO₃S

Color and Shape:

White Powder

Molecular weight:

185.2

Ref: 45-1286209

Estimated delivery in United States, on Friday 27 Dec 2024

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Thimerosal Related Compound A (2,2'-Disulfanediyldibenzoic acid)

CAS:119-80-2

Other aromatic organo

Formula:

C₁₄H₁₀O₄S₂

Color and Shape:

Powder

Molecular weight:

306.00205

Ref: 45-1659001

Estimated delivery in United States, on Friday 27 Dec 2024

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2-Amino-5-chlorobenzophenone

CAS:719-59-5

Amino-aldehydes, amino-ketones and amino-quinones, other than those containing more than one kind of oxygen function; …

Formula:

C₁₃H₁₀ClNO

Color and Shape:

Yellow Crystalline Powder

Molecular weight:

231.04509

Ref: 45-1022808

Estimated delivery in United States, on Friday 27 Dec 2024

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Spironolactone Related Compound D ((2'R)-7α-(Acetyldisulfanyl)-3',4'-dihydro-5'H-spiro[androst-4-ene-17,2'-furan]-3,5'-dione)

Adrenal cortical hormones and their derivatives nesoi

Formula:

C₂₄H₃₂O₄S₂

Color and Shape:

White Powder

Molecular weight:

448.1742

Ref: 45-1619040

Estimated delivery in United States, on Friday 27 Dec 2024

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Oxazepam Related Compound B (7-Chloro-2-oxo-5-phenyl-2,3-dihydro-1H-benzodiazepin-3-yl acetate)

CAS:1824-74-4

Aromatic or modified aromatic heterocyclic compounds withnitrogen hetero

Formula:

C₁₇H₁₃ClN₂O₃

Color and Shape:

Powder

Molecular weight:

328.06147

Ref: 45-1483028

Estimated delivery in United States, on Friday 27 Dec 2024

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Calcipotriene Related Compound C ((5E,7E,22E,24S)-24-Cyclopropyl-9,10-secochola-5,7,10(19),22-tetraene-1α,3β,24-triol)

CAS:113082-99-8

Other cyclanic, cyclenic or cycloterpenic alcohols and their halogenated, sulfonated, nitrated or nitrosated derivatives

Formula:

C₂₇H₄₀O₃

Color and Shape:

Powder

Molecular weight:

412.29775

Ref: 45-1086152

Estimated delivery in United States, on Friday 27 Dec 2024

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Cefaclor δ-3 Isomer

CAS:152575-13-8

Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoi

Formula:

C₁₅H₁₄ClN₃O₄S

Color and Shape:

Off-White Tan Powder

Molecular weight:

367.03935

Ref: 45-1096917

Estimated delivery in United States, on Friday 27 Dec 2024

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Tinidazole Related Compound A (2-methyl-5-nitroimidazole)

CAS:696-23-1

Compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure nesoi

Formula:

C₄H₅N₃O₂

Color and Shape:

Off-White Powder

Molecular weight:

127.03818

Ref: 45-1667530

Estimated delivery in United States, on Friday 27 Dec 2024

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Levalbuterol Related Compound F ((R)-1-[4-(Benzyloxy)-3-(hydroxymethyl)phenyl]-2-(tert-butylamino)ethan-1-ol)

CAS:174607-68-2

Aromatic amino-alcohol-phenols, aromatic amino-acid-phenols and other aromatic amino compounds with oxygen function

Formula:

C₂₀H₂₇N₀₃

Color and Shape:

White Off-White Solid

Molecular weight:

309.2205

Ref: 45-1358842

Estimated delivery in United States, on Friday 27 Dec 2024

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Olanzapine Related Compound C (2-Methyl-4-(4-methylpiperazin-1-yl)-10H-benzo[b]thieno[2,3-e][1,4]diazepine 4'-N-oxide)

CAS:174794-02-6

Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, nesoi

Formula:

C₁₇H₂₀N₄OS

Color and Shape:

Light Yellow Powder

Molecular weight:

328.13578

Ref: 45-1478334

Estimated delivery in United States, on Friday 27 Dec 2024

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Olopatadine Related Compound C (11-Oxo-6,11-dihydrodibenzo[b,e]oxepin-2-yl acetic acid)

CAS:55453-87-7

Aromatic heterocyclic compounds with oxygen hetero-atom(s) only, nesoi

Formula:

C₁₆H₁₂O₄

Color and Shape:

Light Yellow Powder

Molecular weight:

268.07356

Ref: 45-1478436

Estimated delivery in United States, on Friday 27 Dec 2024

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