3-Chloro-4-methylbenzoic Acid CAS 5162-82-3
| CAS No. | 5162-82-3 |
| Molecular Formula | C8H7ClO2 |
| Molecular Weight | 170.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Chloro-4-methylbenzoic Acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-Chloro-4-methylbenzoic Acid (CAS 5162-82-3) is a high-purity analytical reference standard with the molecular formula C8H7ClO2 and a molecular weight of 170.59 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 3-Chloro-4-methylbenzoic Acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 170.59 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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-Chloro-4-methylbenzoic Acid 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 | C8H7ClO2 |
| Molecular Weight | 170.59 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 3-Chloro-4-hydroxy-5-methylbenzaldehyde (CAS 107356-10-5)
- 6-chloro-2,3-dihydro-1-benzofuran-3-ol (CAS 1154740-97-2)
- 4-chloro-2-(difluoromethyl)pyrimidine (CAS 1261453-07-9)
- 2-Chloro-5-(hydroxymethyl)benzaldehyde (CAS 1288998-81-1)
- 3-Chloro-5-(hydroxymethyl)benzaldehyde (CAS 1289062-81-2)
- 2-Chloro-3-(hydroxymethyl)benzaldehyde (CAS 1289263-62-2)
- 6-Chloro-2-hydroxy-3-methylbenzaldehyde (CAS 1310800-53-3)
- 4-Chloro-3-methoxybenzaldehyde (CAS 13726-16-4)
Recommended Standards
- 3'-Chloro-4'-hydroxyacetophenone (CAS 2892-29-7)
- 3-Chloro-5-methylbenzoic Acid (CAS 56961-33-2)
- 3-Chloro-2-methylbenzoic Acid (CAS 7499-08-3)
- 3-Chloro-6-hydroxy-2-methylbenzaldehyde (CAS 34333-12-5)
- 3-[(4-Amino-2-methylphenyl)carbamoyl]benzenesulfonyl chloride (CAS 2034154-89-5)
- (Z)-N'-[(2,6-Dichlorophenyl)methoxy]pyridine-3-carboximidamide (CAS 338753-63-2)
- 2-Bromo-4-(3,3-difluoropiperidin-1-yl)nitrobenzene 1707357-98-9 (CAS 1707357-98-9)
- N-Benzyl-N-(4-formylpiperazin-1-yl)formamide (CAS 1022549-88-7)
- 2,4-Dibromo-6,7,8,9,10,11-hexahydrocycloocta[b]quinoline (CAS 861206-09-9)
- 2-Chloro-N-((3-chloropyrazin-2-yl)methyl)-N-cyclopropylacetamide (CAS 1353980-75-2)
- Methyl 3-(benzyloxy)-2,4-difluorobenzoate (CAS 2635937-53-8)
- 2,2,2-Trifluoro-1-(3-(trifluoromethoxy)phenyl)ethan-1-ol (CAS 1285218-27-0)
- (4Z,7Z,10Z,13Z,16Z,19Z)-N-((R)-1-Hydroxypropan-2-yl)docosa-4,7,10,13,16,19-hexaenamide (CAS 1282618-08-9)
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