3,5-Dichloro-4-hydroxybenzoyl chloride CAS 59595-92-5
| CAS No. | 59595-92-5 |
| Molecular Formula | C7H3Cl3O2 |
| Molecular Weight | 225.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3,5-Dichloro-4-hydroxybenzoyl chloride (C7H3Cl3O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 225.46 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
3,5-Dichloro-4-hydroxybenzoyl chloride (CAS 59595-92-5), molecular formula C7H3Cl3O2 and molecular weight 225.46 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3,5-Dichloro-4-hydroxybenzoyl chloride meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H3Cl3O2 |
| Molecular Weight | 225.46 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Halogen Content | Cl-containing |
Related Dichloro Standards
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- 1,3-Dichloro-2-(2-chloro-ethoxy)-benzene (CAS 53491-29-5)
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Recommended Standards
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- Ixazomib Impurity 32 (CAS 50-82-8)
- (3-(Thiomorpholine-4-carbonyl)phenyl)boronic acid (CAS 850567-37-2)
- 2-(3-Chloro-4-fluorophenyl)isonicotinic acid (CAS 1261951-49-8)
- n2-Benzyl-n2-methylpyridine-2,5-diamine (CAS 181114-67-0)
- 4-(4-(Dimethylamino)piperidin-1-yl)-3-nitrobenzaldehyde 1154666-51-9 (CAS 1154666-51-9)
- Ethyl(4'-fluoro-[1,1'-biphenyl]-4-yl)sulfane (CAS 1443341-52-3)
- 31581-09-6 AR-1I7572 ethanesulfonic acid- 4-chloro-2-{2-[2-chloro-4-(4,6-diamino-2,2-dimethyl-1,3,5-triazin-1(2h)-yl)phenyl]ethyl}benzenesulfonyl fluoride(1:1) (CAS 31581-09-6)
- 4,4-difluoropyrrolidin-3-ol;hydrochloride (CAS 1638764-82-5)
- (3R,4R)-3-methoxytetrahydropyran-4-amine;hydrochloride (CAS 1232064-63-9)
- Ethyl 5,6,7,8-tetrahydro-1,7-naphthyridine-3-carboxylate (CAS 1207253-96-0)
- [Glu]17-Liraglutide (CAS CATO-C4X-199236)
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