Diltiazem Impurity 21 CAS 42399-51-9
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 42399-51-9 |
| Molecular Formula | C16H15NO3S |
| Molecular Weight | 301.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Diltiazem Impurity 21 (CAS 42399-51-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C16H15NO3S. Molecular weight: 301.36 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C16H15NO3S |
| Molecular Weight | 301.36 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Diltiazem Standards
- Diltiazem 2-Epimer O-Desacetyl N-Desdimethylaminoethyl Impurity (CAS 132830-17-2)
- Diltiazem Impurity 20 (CAS 132830-16-1)
- Diltiazem EP Impurity E (CAS 42399-49-5)
- Diltiazem Impurity N1 (CAS 42399-48-4)
- Diltiazem Impurity N2 (CAS 42399-50-8)
- Diltiazem Impurity 18 (CAS 131613-02-0)
- Diltiazem Impurity 23 (CAS 119009-50-6)
- Diltiazem Impurity 33 (CAS CATO-C4X-136833)
Recommended Standards
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- 2,4-Dichlorobenzyl Alcohol EP Impurity F (CAS 874-42-0)
- Mivacurium chloride Impurity 29 (CAS 53432-90-9)
- Ethyl benzo[d]thiazole-4-carboxylate (CAS 2105183-05-7)
- Cyhalodiamide (CAS 1262605-53-7)
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- 3-(Heptafluorooctyl)aniline (CAS 119489-67-7)
- Gastric Inhibitory Polypeptide (1-30) amide (porcine) (CAS 134846-93-8)
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