Cibacron brilliant red 3B-A CAS 17681-50-4
| CAS No. | 17681-50-4 |
| Molecular Formula | C32H19ClN8O14S4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a salt form, a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, Cibacron brilliant red 3B-A is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 926.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Cibacron brilliant red 3B-A (CAS 17681-50-4), molecular formula C32H19ClN8O14S4Na and molecular weight 926.23 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Cibacron brilliant red 3B-A 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 | C32H19ClN8O14S4 4*Na |
| Molecular Weight | 926.23 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 27.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 8 |
| Sulfur Atoms | 4 |
Recommended Standards
- 4-(Phenylsulfonamido)benzoic acid (CAS 28547-16-2)
- 1-(2,2-Dimethyltetrahydro-2H-pyran-4-yl)heptan-1-one (CAS 313518-05-7)
- 2-Amino-1-(5-ethylthiophen-2-yl)ethan-1-ol (CAS 1410364-74-7)
- 4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]methyl}phenyl 4-methylbenzene-1-sulfonate (CAS 338416-37-8)
- Methyl 3-Amino-2,6-dibromoisonicotinate (CAS 28033-01-4)
- Tert-butyl (R)-(1-hydroxy-5-methylhexan-3-yl)carbamate (CAS 944145-92-0)
- 3-nitro-N-propylaniline (CAS 87035-66-3)
- (S)-3-((2-Fluorobenzyl)oxy)pyrrolidine hydrochloride (CAS 1314355-40-2)
- tert-Butyl 6,8-dichloro-3,4-dihydro-2,7-naphthyridine-2(1H)-carboxylate (CAS 1956331-16-0)
- Tirzepatide Impurity 52 (CAS CATO-C4X-324052)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com