3-(3-Methylphenyl)-1,2-thiazole-4-carboxylic acid CAS 67113-93-3
| CAS No. | 67113-93-3 |
| Molecular Formula | C11H9NO2S |
| Molecular Weight | 219.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-(3-Methylphenyl)-1,2-thiazole-4-carboxylic 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.
3-(3-Methylphenyl)-1,2-thiazole-4-carboxylic acid (CAS 67113-93-3), molecular formula C11H9NO2S and molecular weight 219.26 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H9NO2S, 3-(3-Methylphenyl)-1,2-thiazole-4-carboxylic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 219.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C11H9NO2S |
| Molecular Weight | 219.26 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methylphenyl Standards
- 2-(2-methylphenyl)-1,3-thiazole-4-carboxylic acid (CAS 115311-25-6)
- 4-(4-Methylphenyl)-2-thiazolecarboxylic acid (CAS 123971-35-7)
- 2-(3-Methylphenyl)-1,3-thiazole-4-carboxylic acid (CAS 17229-00-4)
- 3-(2-Methylphenyl)-1,2-thiazole-4-carboxylic acid (CAS 67048-49-1)
- 3-(4-Methylphenyl)-1,2-thiazole-4-carboxylic acid (CAS 67049-13-2)
- 6-(4-Methylphenyl)-3-thioxo-3,4-dihydro-1,2,4-triazin-5(2h)-one (CAS 27623-05-8)
- 5-Methyl-3-(4-methylphenyl)-4,5-dihydro-1,2-oxazole-5-carboxylic acid (CAS 1326815-45-5)
- 1-(3-Methylphenyl)-5-oxopyrrolidine-3-carboxylic acid (CAS 56617-45-9)
Recommended Standards
- 3-(4-methyl-1,3-thiazol-2-yl)benzoic acid (CAS 35195-86-9)
- 3-(2-Methyl-1,3-thiazol-4-yl)benzoic acid (CAS 28077-41-0)
- 2-Phenylthiazole-4-carbohydrazide (CAS 7113-12-4)
- 3-(Benzyloxy)isothiazole-5-carbaldehyde (CAS 415724-80-0)
- 2-(5-methyl-1,3-thiazol-2-yl)ethan-1-amine dihydrochloride (CAS 1311317-94-8)
- 4-(2-Fluoropyridin-4-yl)-2-(methylthio)pyrimidine, 97% (CAS 1453851-73-4)
- 5-Amino-3-(trifluoromethyl)-1,2-thiazole-4-carbonitrile (CAS 1094619-79-0)
- Sotetsuflavon (CAS 2608-21-1)
- N-Boc-3-bromo-4-oxopiperidine (CAS 188869-05-8)
- 4-(2-Fluoro-4-nitrophenyl)-1-methyl-1,4,5,6-tetrahydro-1,2,4-triazine (CAS 1334167-66-6)
- 2-Ethyl-4-methyl-2,5-dihydrothiazole (CAS 41803-21-8)
- 2-Chloro-1-(3-(methoxymethyl)piperidin-1-yl)ethan-1-one (CAS 1353962-83-0)
- 4-(benzyloxy)-2-hydroxy-3-methylbenzaldehyde (CAS 1008450-80-3)
- Tirzepatide Impurity 34 (CAS CATO-C4X-324034)
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