1,4-Diamino-2,3-dichloroanthraquinone CAS 81-42-5
Purity >90%In StockPharmaceutical Standards
| CAS No. | 81-42-5 |
| Molecular Formula | C14H8Cl2N2O2 |
| Molecular Weight | 307.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,4-Diamino-2,3-dichloroanthraquinone (CAS 81-42-5) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C14H8Cl2N2O2. Molecular weight: 307.13 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C14H8Cl2N2O2 |
| Molecular Weight | 307.13 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >90% |
| Storage | Store at 2-8°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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- (E)-2-(3,4-Dichlorobenzylidene)-6-hydroxybenzofuran-3(2h)-one (CAS 620545-98-4)
- 2-((2,4-Dichlorophenyl)amino)isoindoline-1,3-dione (CAS 320422-00-2)
- 3-((tert-Butoxycarbonyl)amino)-2,6-dichloroisonicotinic acid (CAS 1956379-65-9)
- (1-Methylheptyl)phosphonic Acid (CAS 4730-70-5)
- Methyl 6-nitro-1H-indazole-4-carboxylate (CAS 885518-55-8)
- (2R,4S)-2-(1,1-Dimethylethyl)-4-methyl-1,3-oxathiolan-5-one (CAS 476371-85-4)
- 2-(2,4-Difluorobenzenesulfonyl)-1-(4-ethoxyphenyl)ethan-1-one (CAS 1326877-00-2)
- 2-(3-Bromophenyl)-1H-indole-3-carboxylic acid (CAS 1098340-10-3)
- α-Pyrrolidinohexanophenone HCl (α-PHP HCl) (CAS 13415-59-3)
- Semaglutide impurity 208 (CAS CATO-C4X-2226208)
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