Dapsone EP Impurity E CAS 7146-68-1
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 7146-68-1 |
| Molecular Formula | C12H10ClNO2S |
| Molecular Weight | 267.73 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Dapsone EP Impurity E (CAS 7146-68-1) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C12H10ClNO2S. Molecular weight: 267.73 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C12H10ClNO2S |
| Molecular Weight | 267.73 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Dapsone Standards
- Dapsone Impurity 16 (CAS 148301-96-6)
- Dapsone Impurity 22 (CAS 64896-96-4)
- Dapsone Impurity 25 (CAS 32631-31-5)
- Dapsone Hydroxylamine Deuterated (CAS 198486-78-1)
- Dapsone Hydroxylamine-d4 (CAS 1330185-26-6)
- Dapsone Hydroxylamine (CAS 32695-27-5)
- Dapsone Impurity 9 (CAS 5461-23-4)
- Dapsone Impurity 2 (CAS CATO-C4X-16042)
Recommended Standards
- 4-{[6-chloro-2-(methylsulfanyl)pyrimidin-4-yl]amino}phenol (CAS 478258-36-5)
- 4-Chloro-6-(methanesulfinylmethyl)-2-(pyridin-3-yl)pyrimidine (CAS 477711-31-2)
- 4-((3-Chlorophenyl)sulfonyl)aniline (CAS 90309-26-5)
- Deoxycholic acid Impurity 35 (CAS CATO-C4X-335935)
- Ertapenem Impurity 57 (CAS CATO-C4X-163357)
- (3aS,8aR)-1,3a,8-Trimethyl-1,2,3,3a,8,8a-hexahydropyrrolo[2,3-b]indole-5,6-dione (CAS 18455-27-1)
- 5-(1,2,3,4-Tetrahydroisoquinoline-2-sulfonyl)thiophene-3-carboxylic acid (CAS 924062-42-0)
- 2-Bromo-3-phenylbutanenitrile (CAS 1018986-05-4)
- 8-Amino-N-(thiazol-2-yl)-3,4-dihydro-2H-1,4-ethanothieno[2,3-b][1,5]naphthyridine-7-carboxamide (CAS 728885-90-3)
- Acetyl Dipeptide-1 (CAS 196604-48-5)
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