6-Chloro-2-hydroxy-3-methylbenzoic acid CAS 872276-56-7
| CAS No. | 872276-56-7 |
| Molecular Formula | C8H7ClO3 |
| Molecular Weight | 186.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 6-Chloro-2-hydroxy-3-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.
CATO supplies 6-Chloro-2-hydroxy-3-methylbenzoic acid (CAS 872276-56-7), a certified reference material (molecular formula C8H7ClO3, MW 186.59 g/mol) for analytical method development and quality control.
Structurally, 6-Chloro-2-hydroxy-3-methylbenzoic acid (C8H7ClO3) 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 186.59 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C8H7ClO3 |
| Molecular Weight | 186.59 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; 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.) | 1987 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 4-Chloro-2-(hydroxymethyl)benzoic acid (CAS 100448-59-7)
- Methyl 2-Chloro-4-hydroxybenzoate (CAS 104253-44-3)
- 3-Chloro-2,4-dihydroxy-6-methylbenzaldehyde (CAS 106325-72-8)
- 2-Chloro-4-(hydroxymethyl)benzoic acid (CAS 1071989-48-4)
- Methyl 2-chloro-3-hydroxybenzoate (CAS 1125632-11-2)
- 2-Chloro-6-hydroxy-4-methoxybenzaldehyde (CAS 116475-68-4)
- 2-Chloro-3-(hydroxymethyl)benzoic acid (CAS 1187238-13-6)
- 4-Chloro-3-(hydroxymethyl)benzoic acid (CAS 1187238-15-8)
Recommended Standards
- 6-Chloro-1,3-benzodioxole-5-methanol (CAS 2591-25-5)
- Methyl 2-chloro-5-hydroxybenzoate (CAS 247092-10-0)
- 5-Chloro-4-hydroxy-2-methoxybenzaldehyde (CAS 917828-33-2)
- Methyl 3-chloro-2-hydroxybenzoate (CAS 52159-67-8)
- N-cycloheptyl-4-fluorobenzamide (CAS 326902-25-4)
- 2-(3,4-Dichlorophenyl)nicotinic acid (CAS 1261945-25-8)
- 3-(trifluoromethyl)-7,8,9,10-tetrahydro-5H-pyrido[1,2-a]quinoxalin-6(6aH)-one (CAS 1009240-54-3)
- (E)-2-cyano-3-phenyl-N-(thiazol-2-yl)acrylamide (CAS 1006694-45-6)
- (2R,3R,4R,5S)-2-(Aminomethyl)-5-methoxytetrahydrofuran-3,4-diol (CAS 741186-04-9)
- 3-(4-Iodophenyl)-5,6-dihydro-4H-pyrrolo[3,2-d]isoxazole (CAS 603067-39-6)
- 3-Ethyl-1-oxa-3,8-diazaspiro[4.5]decan-2-one hydrochloride (CAS 1896915-28-8)
- 5-(1-(Ethylsulfonyl)piperidin-3-yl)-4-isobutyl-4H-1,2,4-triazole-3-thiol (CAS 932830-51-8)
- Methyl 5-amino-1-(3-chlorophenyl)-1H-pyrazole-4-carboxylate (CAS 121716-20-9)
- Stresscopin-Related Peptide (human) (CAS 348626-74-4)
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