2-Chloro-5-methylbenzene-1,3-diol CAS 56021-31-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 56021-31-9 |
| Molecular Formula | C7H7ClO2 |
| Molecular Weight | 158.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Chloro-5-methylbenzene-1,3-diol (CAS 56021-31-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C7H7ClO2. Molecular weight: 158.58 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C7H7ClO2 |
| Molecular Weight | 158.58 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Cl-containing |
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Recommended Standards
- 2-Chloro-3-methoxyphenol (CAS 72232-49-6)
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- 3-(3-Bromophenyl)-1-(3-chlorophenyl)propan-1-one (CAS 898782-39-3)
- 3-Iodo-1H,1H,2H,2H,3H,4H,4H-perfluorodecan-1-ol (CAS 16083-68-4)
- Methyl (S)-3-amino-3-(4-chlorophenyl)propanoate (CAS 283159-95-5)
- Ethyl 2-amino-5-isopropoxybenzoate (CAS 1251304-75-2)
- (E)-3-(2,6-dichlorophenyl)-1-(2-methylimidazo[1,2-a]pyridin-3-yl)prop-2-en-1-one (CAS 1357155-82-8)
- Insulin Glulisine (CAS 207748-29-6)
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