Dacarbazine EP Impurity A CAS 4656-86-4
Purity >90%In StockPharmacopoeial Impurity Standards
| CAS No. | 4656-86-4 |
| Molecular Formula | C4H3N5O |
| Molecular Weight | 137.10 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
High-purity Dacarbazine EP Impurity A (CAS 4656-86-4) pharmacopoeial impurity standards reference standard. Molecular formula: C4H3N5O. Molecular weight: 137.10 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C4H3N5O |
| Molecular Weight | 137.10 g/mol |
| Purity | >90% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 5 |
Related Dacarbazine Standards
- Dacarbazine Impurity 1 (CAS 63907-29-9)
- Dacarbazine EP Impurity C (CAS 1314929-56-0)
- Dacarbazine (CAS 4342-03-4)
- Dacarbazine-d6 (N,N-dimethyl-d6) (CAS 1185241-28-4)
- Dacarbazine EP Impurity B HCl (CAS 72-40-2)
- Dacarbazine Impurity 2 (CAS 7151-03-3)
- Dacarbazine Impurity 3 (CAS 506-59-2)
- Dacarbazine Lactose Adduct Impurity (CAS CATO-C4X-23054)
Recommended Standards
- Temozolomide EP Impurity D (CAS 7008-85-7)
- 2-Fluoro-3-hydroxybenzonitrile (CAS 1000339-24-1)
- 4-Amino-1-nitroso-1H-imidazole-5-carbonitrile (CAS CATO-C3D-262119)
- Lapatinib Impurity 7 (CAS 320337-46-0)
- Erlotinib impurity 143 (CAS CATO-C4X-1069143)
- 2-((2,4-Dichlorophenyl)sulfonyl)acetonitrile (CAS 87475-64-7)
- 2,4-Dichloropyrido[2,3-d]pyrimidine (CAS 126728-20-9)
- 3-Methyl-5-(1-methyl-1H-pyrazol-3-yl)pyrazolo[1,5-a]pyrimidine-7-carboxylic acid (CAS 1443279-06-8)
- 2-(chloromethyl)-5-methanesulfonyl-1,3,4-thiadiazole (CAS 27603-39-0)
- [y-Glu3]-Semaglutide Impurity 135 (CAS CATO-C4X-2226135)
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 13829788188 / jacky.chen@cato-chem.com