Tartrazine CAS 1934-21-0
Purity >95%In StockPharmaceutical Standards
| CAS No. | 1934-21-0 |
| Molecular Formula | C16H9N4O9S2 3*Na |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Tartrazine (CAS 1934-21-0) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C16H9N4O9S2 3*Na. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C16H9N4O9S2 3*Na |
| Molecular Weight | 488.38 g/mol |
| Purity | >95% |
| 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) | 14.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 2 |
Related Tartrazine Standards
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- Methyl 4-(4-methylphenoxy)benzoate (CAS 21120-72-9)
- 3-(Prop-2-yn-1-yl)tetrahydrofuran-3-carboxylic acid (CAS 1526588-44-2)
- Ethyl 4-(4-Pyridyl)-2-thiazolecarboxylate (CAS 216867-38-8)
- 4-(3-Carboxyphenyl)-2-methylphenol (CAS 1261976-44-6)
- Semaglutide impurity 28 (CAS CATO-C4X-222628)
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