Acid chrome blue K CAS 3270-25-5
| CAS No. | 3270-25-5 |
| Molecular Formula | C16H9N2Na3O12S3 |
| Molecular Weight | 586.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Acid chrome blue K (CAS 3270-25-5), molecular formula C16H9N2Na3O12S3 and molecular weight 586.41 g/mol, is a CATO reference standard with documented purity and traceability.
Acid chrome blue K (C16H9N2Na3O12S3) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Acid chrome blue K under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C16H9N2Na3O12S3 |
| Molecular Weight | 586.41 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 13.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 3 |
Related Acid Standards
Recommended Standards
- 2-Naphthalenyl(triphenylphosphine)gold (CAS 67430-86-8)
- 2-bromanyl-4-[(3S)-3-[(1S,4S,5R,6S)-5-bromanyl-3,6-dimethyl-4-oxidanyl-cyclohex-2-en-1-yl]-1,1-bis(oxidanylidene)-2,1$l^{6}-benzoxathiol-3-yl]-3,6-dimethyl-phenol 2-bromo-4-[(3S)-3-[(1S,4S,5R,6S)-5-bromo-4-hydroxy-3,6-dimethyl-1-cyclohex-2-enyl]-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]-3,6-dimethylphenol 40070-59-5 A824884 (CAS 40070-59-5)
- Carbonylhydrido(tetrahydroborato)[bis(2-diphenylphosphinoethyl)amino]ruthenium(II) (CAS 1295649-41-0)
- Ethyl 6-amino-5-cyano-2-{[(3-cyano-4,5,6-trimethylpyridin-2-yl)sulfanyl]methyl}-4-(2-iodophenyl)-4H-pyran-3-carboxylate (CAS 330180-52-4)
- 3-[(4-Chlorophenyl)sulfonyl]azetidine hydrochloride (CAS 1820665-00-6)
- N-[1-(5-Mercapto-4-methyl-4H-[1,2,4]triazol-3-yl)-ethyl]-benzamide (CAS 754233-93-7)
- N-(5-Amino-2-methoxyphenyl)-2-(4-methoxyphenoxy)-propanamide (CAS 1020054-93-6)
- (3-(2,4-Dichloro-5-fluorophenyl)-1-(2,4-difluorophenyl)-1H-pyrazol-4-yl)methanol (CAS 618441-78-4)
- 4,4,8,8,12,12-Hexamethyl-8,12-dihydro-4H-benzo[9,1]quinolizino[3,4,5,6,7-defg]acridine (CAS 52066-63-4)
- N-[4-(5-Methyl-1,3-benzothiazol-2-yl)phenyl]-3,5-dinitrobenzamide (CAS 302559-79-1)
- rac-Modipafant (CAS 122956-68-7)
- 4-Methyl-5-phenyl-1H-imidazol-2-amine hemisulfate (CAS 6646-80-6)
- N-(2,4-Difluorophenyl)-3-((4-methoxyphenyl)thio)propanamide (CAS 941908-87-8)
- Vasonatrin Peptide (VNP) trifluoroacetate salt (CAS 141676-35-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com