4-Chloro-2-ethylbenzoic acid CAS 58231-16-6
| CAS No. | 58231-16-6 |
| Molecular Formula | C9H9ClO2 |
| Molecular Weight | 184.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Chloro-2-ethylbenzoic acid.
4-Chloro-2-ethylbenzoic acid (CAS 58231-16-6), molecular formula C9H9ClO2 and molecular weight 184.62 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H9ClO2, 4-Chloro-2-ethylbenzoic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 184.62 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-Chloro-2-ethylbenzoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H9ClO2 |
| Molecular Weight | 184.62 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.) | 1973 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 2-(3-Chloro-4-methylphenyl)acetic acid (CAS 1000515-63-8)
- 2-(2-chloro-3-methylphenyl)acetic acid (CAS 1000518-49-9)
- 2-Chloro-5-methoxy-4-methylbenzaldehyde (CAS 100948-46-7)
- 2-Chloro-6-(cyclopropylmethoxy)pyrazine (CAS 1019493-28-7)
- 3-Chloro-6-(cyclopropylmethoxy)pyridazine (CAS 1019619-79-4)
- 2-Chloro-6-ethoxybenzaldehyde (CAS 1021230-95-4)
- 3-Chloro-4-methoxybenzimidamide (CAS 102151-35-9)
- 3-Chloro-2-methylbenzhydrazide (CAS 1022873-06-8)
Recommended Standards
- 4-Chloro-2-ethoxybenzaldehyde (CAS 869088-32-4)
- 4-Chloro-2-methylbenzhydrazide (CAS 75319-02-7)
- 4-Chloro-2,6-dimethylbenzoic Acid (CAS 35887-72-0)
- 4-Chloro-2-methylphenylacetic Acid (CAS 614-81-3)
- (R)-1-(3-bromophenyl)-2-methylpropan-1-amine (CAS 1212173-09-5)
- [4-(tert-butoxycarbonylamino)-4-methyl-cyclohexen-1-yl] trifluoromethanesulfonate (CAS 2138510-40-2)
- Methyl 3-amino-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate hydrochloride (CAS 850567-50-9)
- Benzocaine EP Impurity C (CAS 582-33-2)
- Fluralaner Impurity N5 (CAS 943436-93-9)
- 2-(9,9'-Spirobi[fluoren]-2-yl)-4,6-di([1,1':3',1''-terphenyl]-5'-yl)-1,3,5-triazine (CAS 1233200-52-6)
- 4-(((Tert-butoxycarbonyl)amino)methyl)bicyclo[2.2.1]Heptane-1-carboxylic acid (CAS 1956325-65-7)
- 5-{[4-(methoxycarbonyl)phenoxy]methyl}-2-furoic acid (CAS 832737-69-6)
- 6-tert-Butyl-4-piperazin-1-ylthieno[3,2-d]pyrimidine (CAS 683274-69-3)
- Eledoisin Related Peptide (CAS 2990-43-4)
Why CATO?
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