
Spectroscopy Standards
Spectroscopy standards are critical reference materials used for accurate and reliable spectroscopic determinations. This category includes a variety of standards essential for different spectroscopic techniques, such as atomic absorption standards and atomic emission standards, which are vital for precise measurement of metal concentrations. Additionally, the category encompasses standards for spin resonance, crucial for Electron Spin Resonance (ESR) and Nuclear Magnetic Resonance (NMR) spectroscopy, ensuring accurate calibration and validation of these instruments. Spectrophotometry standards are also included, providing benchmarks for the quantitative analysis of light absorption in various samples. These standards play a pivotal role in ensuring the accuracy, consistency, and reproducibility of spectroscopic measurements across numerous scientific and industrial applications, including environmental analysis, pharmaceutical testing, and materials research. By offering high-purity reference materials, spectroscopy standards support the development of reliable analytical methods and the maintenance of stringent quality control protocols.
Subcategories of "Spectroscopy Standards"
- Atomic Absorption Standards(128 products)
- Atomic Emission Standards(37 products)
- Electron Spin Resonance (ESR/EPR) Spectroscopy(42 products)
- Spectrophotometry Standards(72 products)
Found 1357 products of "Spectroscopy Standards"
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Tetraiodofluorescein
CAS:Formula:C20H8I4O5Purity:>95.0%(HPLC)Color and Shape:Light yellow to Brown powder to crystalMolecular weight:835.904-Isothiocyanato-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical
CAS:Formula:C10H17N2OSPurity:>97.0%(GC)(T)Color and Shape:Light yellow to Brown powder to crystalMolecular weight:213.32(-)-Camphanic Acid
CAS:Formula:C10H14O4Purity:>98.0%(T)Color and Shape:White to Almost white powder to crystalineMolecular weight:198.22[[(4-Ethyl-3,5-dimethyl-1H-pyrrol-2-yl)(4-ethyl-3,5-dimethyl-2H-pyrrol-2-ylidene)methyl]methane](difluoroborane)
CAS:Formula:C18H25BF2N2Purity:>98.0%(HPLC)Color and Shape:Light yellow to Brown powder to crystalineMolecular weight:318.22Bis(3-methyl-1-phenyl-5-pyrazolone) [for Determination of CN, Vitamin B12, etc]
CAS:Formula:C20H18N4O2Purity:>97.0%(T)Color and Shape:White to Orange to Green powder to crystalMolecular weight:346.399-Anthracenecarboxylic Acid (purified by sublimation)
CAS:Formula:C15H10O2Purity:>99.0%(GC)(T)Color and Shape:Light yellow to Yellow to Green powder to crystalMolecular weight:222.24Toluene [for Spectrophotometry]
CAS:Controlled ProductFormula:C7H8Purity:>99.5%(GC)Color and Shape:Colorless clear liquidMolecular weight:92.14(R)-(-)-α-Methoxy-α-(trifluoromethyl)phenylacetyl Chloride (ca. 18% in Dichloromethane, ca. 1.0mol/L) [for Determination of the optical purity of Alcohols and Amines]
CAS:Formula:C10H8ClF3O2Purity:min. 99.0 ee%(GC)Color and Shape:Colorless to Almost colorless clear liquidMolecular weight:252.627-Hydroxy-4-methylcoumarin-3-acetic Acid
CAS:Formula:C12H10O5Purity:>97.0%(T)(HPLC)Color and Shape:White to Light yellow powder to crystalMolecular weight:234.21(R)-(-)-1-(1-Naphthyl)ethyl Isocyanate
CAS:Formula:C13H11NOPurity:>90.0%(GC)Color and Shape:Colorless to Light yellow to Light orange clear liquidMolecular weight:197.24Sulfonfluorescein
CAS:Formula:C19H12O6SPurity:>75.0%(T)(HPLC)Color and Shape:Orange to Amber to Dark red powder to crystalMolecular weight:368.364-Methoxy-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical [Catalyst for Oxidation]
CAS:Formula:C10H20NO2Purity:>98.0%(GC)(T)Color and Shape:Orange to Amber to Dark red powder to crystalMolecular weight:186.283,4-Diaminobenzophenone
CAS:Formula:C13H12N2OPurity:>98.0%(GC)(T)Color and Shape:Light yellow to Brown to Dark green powder to crystalMolecular weight:212.25Butyl Acetate [for Spectrophotometry]
CAS:Formula:C6H12O2Purity:>99.0%(GC)Color and Shape:Colorless clear liquidMolecular weight:116.16N-[4-(2-Benzimidazolyl)phenyl]maleimide
CAS:Formula:C17H11N3O2Purity:>98.0%(T)(HPLC)Color and Shape:Light yellow to Amber powder to crystalMolecular weight:289.29(R)-(-)-2-Phenylpropionic Acid
CAS:Formula:C9H10O2Purity:>98.0%(GC)(T)Color and Shape:White or Colorless to Light yellow powder to lump to clear liquidMolecular weight:150.18Pinacyanol Chloride
CAS:Formula:C25H25ClN2Purity:>93.0%(HPLC)Color and Shape:Green to Dark green powder to crystalMolecular weight:388.94Nitromethane [for Spectrophotometry]
CAS:Formula:CH3NO2Purity:>98.0%(GC)Color and Shape:Colorless to Almost colorless clear liquidMolecular weight:61.044-Cyanobenzoic Acid
CAS:Formula:C8H5NO2Purity:>98.0%(GC)(T)Color and Shape:White to Almost white powder to crystalMolecular weight:147.131,8-Bis(dimethylamino)naphthalene [for Dehydrohalogenation]
CAS:Formula:C14H18N2Purity:>98.0%(GC)(T)Color and Shape:White to Light yellow to Light orange powder to crystalMolecular weight:214.31Erythrosine B
CAS:Formula:C20H6I4Na2O5Purity:>95.0%(E)Color and Shape:Orange to Amber to Dark red powder to crystalMolecular weight:879.864-Oxo-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical (purified by sublimation)
CAS:Formula:C9H16NO2Purity:>98.0%(GC)Color and Shape:Light yellow to Brown powder to crystalMolecular weight:170.232,2'-Dihydroxyazobenzene [Spectrophotometric and fluorimetric reagent for Al, Mg and other metals]
CAS:Formula:C12H10N2O2Purity:>98.0%(T)(HPLC)Color and Shape:Light yellow to Amber to Dark green powder to crystalMolecular weight:214.22Neocuproine Hydrochloride Monohydrate
CAS:Formula:C14H12N2·HCl·H2OPurity:>99.0%(HPLC)Color and Shape:White to Dark green powder to crystalMolecular weight:262.74Luminol [Chemiluminescence Reagent]
CAS:Formula:C8H7N3O2Purity:>97.0%(HPLC)Color and Shape:White to Brown powder to crystalMolecular weight:177.163-Aminoquinoline
CAS:Formula:C9H8N2Purity:>99.0%(GC)(T)Color and Shape:White to Light yellow to Light orange powder to crystalMolecular weight:144.185-Aminosalicylic Acid
CAS:Formula:C7H7NO3Purity:>98.0%(T)Color and Shape:White to Gray to Brown powder to crystalMolecular weight:153.14Dimidium Bromide
CAS:Formula:C20H18BrN3Purity:>98.0%(HPLC)Color and Shape:Orange to Brown to Dark purple powder to crystalMolecular weight:380.292,4,6-Tris(pentafluoroethyl)-1,3,5-triazine
CAS:Formula:C9F15N3Purity:>95.0%(GC)Color and Shape:Colorless to Almost colorless clear liquidMolecular weight:435.108-Quinolinol
CAS:Formula:C9H7NOPurity:>99.0%(GC)(T)Color and Shape:White to Light yellow to Light orange powder to crystalMolecular weight:145.164,4'-Diantipyrylmethane Monohydrate [for Ti Analysis]
CAS:Formula:C23H24N4O2·H2OPurity:>98.0%(T)Color and Shape:White powder to crystalMolecular weight:406.494-Hydroxy-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical
CAS:Formula:C9H18NO2Purity:>98.0%(GC)Color and Shape:Light yellow to Brown powder to lumpMolecular weight:172.25Ethyl 7-(Diethylamino)coumarin-3-carboxylate
CAS:Formula:C16H19NO4Purity:>98.0%(GC)(T)Color and Shape:Light yellow to Amber to Dark green powder to crystalMolecular weight:289.33N-tert-Butyl-α-phenylnitrone
CAS:Formula:C11H15NOPurity:>98.0%(T)(HPLC)Color and Shape:White to Light yellow to Light orange powder to crystalMolecular weight:177.25trans-Cinnamic Acid [Matrix for MALDI-TOF/MS]
CAS:Formula:C9H8O2Purity:>99.5%(GC)(T)Color and Shape:White to Almost white powder to crystalMolecular weight:148.165-Chloro-2-mercaptobenzothiazole
CAS:Formula:C7H4ClNS2Purity:>96.0%(T)Color and Shape:White to Yellow to Green powder to crystalMolecular weight:201.69N-(1-Pyrenyl)maleimide
CAS:Formula:C20H11NO2Purity:>97.0%(HPLC)Color and Shape:Light yellow to Brown powder to crystalMolecular weight:297.31Resorufin
CAS:Formula:C12H7NO3Purity:>95.0%(HPLC)Color and Shape:Dark green to Dark blue to Black powder to crystalMolecular weight:213.19Beryllon III
CAS:Formula:C20H20N3NaO8S2Color and Shape:Dark green to Dark blue to Black powder to crystalMolecular weight:517.504-Chlorobenzoyl Chloride
CAS:Formula:C7H4Cl2OPurity:>98.0%(GC)(T)Color and Shape:White or Colorless to Almost white or Almost colorless powder to lump to clear liquidMolecular weight:175.01Pyrogallol Red
CAS:Formula:C19H12O8SColor and Shape:Dark red to Brown powder to crystalMolecular weight:400.36(R)-(-)-2-Methoxy-2-(1-naphthyl)propionic Acid
CAS:Formula:C14H14O3Purity:>99.0%(HPLC)Color and Shape:White to Light yellow powder to crystalMolecular weight:230.26Benzene [for Spectrophotometry]
CAS:Formula:C6H6Purity:>99.5%(GC)Color and Shape:Colorless clear liquidMolecular weight:78.117-Diethylamino-4-methylcoumarin
CAS:Formula:C14H17NO2Purity:>98.0%(GC)(T)Color and Shape:White to Amber to Dark green powder to crystalMolecular weight:231.30(R)-(+)-1-Phenylethylamine
CAS:Formula:C8H11NPurity:>99.0%(GC)Color and Shape:Colorless to Light yellow to Light orange clear liquidMolecular weight:121.183,3,5,5-Tetramethyl-1-pyrroline N-Oxide
CAS:Formula:C8H15NOPurity:>98.0%(GC)Color and Shape:White to Orange to Green powder to crystalMolecular weight:141.21Sodium Perborate Tetrahydrate [for Biochemical Research]
CAS:Formula:NaBO3·4H2OPurity:>97.0%(T)Color and Shape:White to Almost white powder to crystalMolecular weight:153.86Diethanolamine [Matrix for FABMS and liquid SIMS]
CAS:Formula:C4H11NO2Purity:>99.0%(GC)Color and Shape:White or Colorless to Almost white or Almost colorless powder to lump to clear liquidMolecular weight:105.142,2,6,6-Tetramethylpiperidine 1-Oxyl Free Radical
CAS:Formula:C9H18NOPurity:>98.0%(GC)(T)Color and Shape:Orange to Brown powder to crystalMolecular weight:156.25Copper(I) Cyanide
CAS:Formula:CuCNPurity:>98.0%(T)Color and Shape:White to Dark green powder to crystalineMolecular weight:89.565,5-Dimethyl-1-pyrroline N-Oxide
CAS:Formula:C6H11NOPurity:>97.0%(GC)(T)Color and Shape:White or Colorless to Yellow to Orange powder to lump to clear liquidMolecular weight:113.16MCLA [Chemiluminescence Reagent]
CAS:Formula:C14H13N3O2·HClPurity:>98.0%(HPLC)Color and Shape:White to Brown powder to crystalMolecular weight:291.74Dimethyl Sulfoxide-d6 99.9atom%D
CAS:Formula:C2D6OSPurity:>99.0%(GC)Color and Shape:Colorless to Almost colorless clear liquidMolecular weight:84.174-(4,5-Diphenyl-1H-imidazol-2-yl)phenol [for Biochemical Research]
CAS:Formula:C21H16N2OPurity:>98.0%(T)(HPLC)Color and Shape:White to Light yellow powder to crystalMolecular weight:312.375-Sulfo-4'-diethylamino-2,2'-dihydroxyazobenzene
CAS:Formula:C16H19N3O5SPurity:>90.0%(T)(HPLC)Color and Shape:Red to Purple powder to crystalMolecular weight:365.40Caffeic Acid
CAS:Formula:C9H8O4Purity:>98.0%(T)(HPLC)Color and Shape:White to Orange to Green powder to crystalMolecular weight:180.16Decahydronaphthalene (cis- and trans- mixture) [Testing Methods for Sulfur in Crude Oil and Petroleum Products]
CAS:Formula:C10H18Purity:>99.0%(GC)Color and Shape:Colorless clear liquidMolecular weight:138.25Benzoic Acid
CAS:Formula:C7H6O2Purity:>99.0%(GC)Color and Shape:White to Almost white powder to crystalMolecular weight:122.12Coumarin 153
CAS:Formula:C16H14F3NO2Purity:>95.0%(T)(HPLC)Color and Shape:Light yellow to Yellow to Orange powder to crystalineMolecular weight:309.29(S)-(+)-α-Methoxy-α-(trifluoromethyl)phenylacetyl Chloride [for Determination of the optical purity of Alcohols and Amines]
CAS:Formula:C10H8ClF3O2Purity:>98.0%(GC)(T)Color and Shape:Colorless to Almost colorless clear liquidMolecular weight:252.625-Methyl-1,10-phenanthroline [for Colorimetric Determination of Iron]
CAS:Formula:C13H10N2Purity:min. 98.0 %(calcd.on anh.substance)Color and Shape:White to Light yellow to Light orange powder to crystalMolecular weight:194.246-Aminofluorescein (isomer II)
CAS:Formula:C20H13NO5Purity:>95.0%(T)Color and Shape:Light yellow to Brown powder to crystalMolecular weight:347.33Tetramethylsilane [for NMR]
CAS:Formula:C4H12SiPurity:>99.0%(GC)Color and Shape:Colorless clear liquidMolecular weight:88.23N,N-Dimethylformamide-d7 99.5atom%D
CAS:Formula:C3D7NOColor and Shape:Colorless clear liquidMolecular weight:80.14Fluorescein 5-Isothiocyanate (isomer I)
CAS:Formula:C21H11NO5SPurity:>97.0%(T)(HPLC)Color and Shape:White to Yellow to Orange powder to crystalMolecular weight:389.383,3'-Diethyloxacarbocyanine Iodide
CAS:Formula:C21H21IN2O2Purity:>98.0%(N)Color and Shape:Orange to Brown to Dark red powder to crystalineMolecular weight:460.32Sulfonazo III [Spectrophotometric reagent for alkaline earth metals and indicator for the precipitation titration of SO4 with Ba]
CAS:Formula:C22H12N4Na4O14S4Purity:>90.0%(HPLC)Color and Shape:Dark green to Black powder to crystalMolecular weight:776.55(R)-(-)-2,2,2-Trifluoro-1-(9-anthryl)ethanol [e.e. Determination Reagent by NMR]
CAS:Formula:C16H11F3OPurity:>99.0%(GC)Color and Shape:White to Light yellow to Green powder to crystalMolecular weight:276.26α-Cyano-4-hydroxycinnamic Acid
CAS:Formula:C10H7NO3Purity:>98.0%(T)(HPLC)Color and Shape:Light yellow to Amber to Dark green powder to crystalMolecular weight:189.17Barium Chloranilate Trihydrate
CAS:Formula:C6BaCl2O4·3H2OPurity:>97.0%(T)Color and Shape:Gray to Dark purple to Black powder to crystalMolecular weight:398.34Red-CLA [Chemiluminescence Reagent]
CAS:Formula:C50H51N7O9S2Color and Shape:Gray to Dark purple to Black powder to crystalMolecular weight:958.124-Bromophenol [for Biochemical Research]
CAS:Formula:C6H5BrOPurity:>98.0%(GC)(T)Color and Shape:White to Yellow to Orange powder to crystalMolecular weight:173.01(1R,4S)-1,2,3,4-Tetrahydro-1,4-epoxynaphthalene-1-carboxylic Acid
CAS:Formula:C11H10O3Purity:>96.0%(HPLC)Color and Shape:White to Almost white powder to crystalMolecular weight:190.20Dichloromethane-d2 99.9atom%D
CAS:Formula:CCl2D2Purity:min. 99.0 %(GC)Color and Shape:Colorless clear liquidMolecular weight:86.94Isoluminol [Chemiluminescence reagent]
CAS:Formula:C8H7N3O2Purity:>98.0%(T)(HPLC)Color and Shape:Light yellow to Amber to Dark green powder to lumpMolecular weight:177.16Bismuthiol II
CAS:Formula:C8H5KN2S3Purity:>98.0%(T)(HPLC)Color and Shape:White to Light yellow to Green powder to crystalMolecular weight:264.42PAN [=1-(2-Pyridylazo)-2-naphthol] [Metal indicator and spectrophotometric reagent for transition metals]
CAS:Formula:C15H11N3OPurity:>98.0%(T)(HPLC)Color and Shape:Light yellow to Amber to Dark green powder to crystalMolecular weight:249.27Benzene-d6 99.6atom%D
CAS:Formula:C6D6Color and Shape:Colorless to Almost colorless clear liquidMolecular weight:84.15Pentamethylene Bis[4-(10,15,20-triphenylporphyrin-5-yl)benzoate]dizinc(II) [Reagent for application of the exciton chirality method]
CAS:Formula:C95H64N8O4Zn2Purity:>97.0%(HPLC)Color and Shape:Dark purple powder to crystalMolecular weight:1,512.37Isoamyl Acetate [for Spectrophotometry]
CAS:Formula:C7H14O2Purity:>98.0%(GC)Color and Shape:Colorless clear liquidMolecular weight:130.19Bis(2,4-dinitrophenyl) Oxalate [Chemiluminescence reagent for the determination of fluorescent compounds by HPLC and FIA]
CAS:Formula:C14H6N4O12Purity:>98.0%(T)Color and Shape:White to Light yellow powder to crystalMolecular weight:422.22N,N-Dimethylformamide [for Spectrophotometry]
CAS:Formula:C3H7NOPurity:>99.5%(GC)Color and Shape:Colorless clear liquidMolecular weight:73.102-Amino-5-mercapto-1,3,4-thiadiazole
CAS:Formula:C2H3N3S2Purity:>98.0%(T)(HPLC)Color and Shape:White to Light yellow powder to crystalMolecular weight:133.19Chloroform-d 99.6atom%D (stabilized with Silver chip)
CAS:Formula:CDCl3Color and Shape:Colorless clear liquidMolecular weight:120.38Sodium [(S)-1,2-Diaminopropane-N,N,N',N'-tetraacetato]samarate(III)
CAS:Formula:C11H14N2NaO8SmPurity:>90.0%(T)Color and Shape:White to Light yellow to Light orange powder to crystalMolecular weight:475.59NAM [=N-(9-Acridinyl)maleimide] [for HPLC Labeling]
CAS:Formula:C17H10N2O2Purity:>98.0%(HPLC)Color and Shape:White to Amber powder to crystalMolecular weight:274.28trans-Ferulic Acid
CAS:Formula:C10H10O4Purity:>98.0%(GC)(T)Color and Shape:White to Orange to Green powder to crystalMolecular weight:194.19Methyl Formate [for Spectrophotometry]
CAS:Formula:C2H4O2Purity:>98.0%(GC)Color and Shape:Colorless clear liquidMolecular weight:60.052,2,4-Trimethylpentane [for Spectrophotometry]
CAS:Formula:C8H18Purity:>99.0%(GC)Color and Shape:Colorless clear liquidMolecular weight:114.232',7'-Dichlorofluorescein Sodium Salt
CAS:Formula:C20H8Cl2Na2O5Purity:>98.0%(T)Color and Shape:Purple to Dark purple to Brown powder to crystalMolecular weight:445.163-Nitrobenzyl Alcohol [Matrix for FABMS and liquid SIMS]
CAS:Formula:C7H7NO3Purity:>99.0%(GC)Color and Shape:Light yellow to Yellow to Orange powder to lump to clear liquidMolecular weight:153.14Benzoyl Leuco Methylene Blue
CAS:Formula:C23H23N3OSPurity:>96.0%(T)(HPLC)Color and Shape:White to Light yellow to Green powder to crystalMolecular weight:389.524-Methyl-6,7-methylenedioxycoumarin
CAS:Formula:C11H8O4Purity:min. 99.0 %(GC)Color and Shape:White to Light yellow powder to crystalMolecular weight:204.18ANS-Mg (=Magnesium(II) 8-Anilino-1-naphthalenesulfonate) [Hydrophobic fluorescent probe]
CAS:Formula:C32H24MgN2O6S2Purity:>98.0%(T)(HPLC)Color and Shape:Light yellow to Amber to Dark green powder to crystalMolecular weight:620.987-Hydroxycoumarin-3-carboxylic Acid
CAS:Formula:C10H6O5Purity:>98.0%(HPLC)Color and Shape:White to Light yellow powder to crystalMolecular weight:206.15(R)-(+)-1-(1-Naphthyl)ethylamine
CAS:Formula:C12H13NPurity:>99.0%(GC)Color and Shape:Colorless to Yellow clear liquidMolecular weight:171.24Methanol [for Spectrophotometry]
CAS:Formula:CH4OPurity:>99.8%(GC)Color and Shape:Colorless clear liquidMolecular weight:32.044-Hydroxy-2,2,6,6-tetramethylpiperidine 1-Oxyl Benzoate Free Radical [Catalyst for Oxidation]
CAS:Formula:C16H22NO3Purity:>97.0%(GC)(T)Color and Shape:Light yellow to Brown powder to crystalMolecular weight:276.361,5-Diphenylcarbonohydrazide
CAS:Formula:C13H14N4OPurity:>98.0%(HPLC)Color and Shape:White to Light yellow to Light orange powder to crystalMolecular weight:242.283,3'-Diethylthiacarbocyanine Iodide
CAS:Formula:C21H21IN2S2Purity:>98.0%(HPLC)(N)Color and Shape:Amber to Brown to Dark green powder to crystalMolecular weight:492.44
