5-Chloro-2-(methylsulfonyl)pyrimidine-4-carboxylic Acid CAS 38275-34-2
| CAS No. | 38275-34-2 |
| Molecular Formula | C6H5ClN2O4S |
| Molecular Weight | 236.63 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 5-Chloro-2-(methylsulfonyl)pyrimidine-4-carboxylic Acid.
5-Chloro-2-(methylsulfonyl)pyrimidine-4-carboxylic Acid (CAS 38275-34-2), molecular formula C6H5ClN2O4S and molecular weight 236.63 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-Chloro-2-(methylsulfonyl)pyrimidine-4-carboxylic Acid (C6H5ClN2O4S) contains an amide group, a sulfone group, 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 236.63 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.
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), 5-Chloro-2-(methylsulfonyl)pyrimidine-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.
Physical & Chemical Properties
| Molecular Formula | C6H5ClN2O4S |
| Molecular Weight | 236.63 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; 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.) | 1967 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 4-Chloro-6-fluoro-7-methoxyquinoline-3-carbonitrile (CAS 1017788-78-1)
- 4-Chloro-6-fluoro-8-methoxyquinoline-3-carbonitrile (CAS 1247810-29-2)
- 4-Chloro-2-nitrobenzene-1-sulfonamide (CAS 13852-81-8)
- 3-(2-Chloro-6-fluorophenyl)-5-methylisoxazole-4-carbonitrile 3-(2-chloro-6-fluorophenyl)-5-methyl-4-isoxazolecarbonitrile 175204-41-8 (CAS 175204-41-8)
- 4-Chloro-8-fluoro-6-methoxyquinoline-3-carbonitrile (CAS 1823500-08-8)
- 2-Chloro-4-nitrobenzenesulfonamide (CAS 31150-99-9)
- 2-Chloro-5-nitrobenzenesulfonamide (CAS 96-72-0)
- 2-Chloro-5-sulfobenzoic acid (CAS 40284-70-6)
Recommended Standards
- 4-Chloro-8-fluoro-7-methoxyquinoline-3-carbonitrile (CAS 2150766-07-5)
- 5-Chloro-2-nitrobenzene-1-sulfonamide (CAS 68379-05-5)
- 4-Chloro-7-fluoro-6-methoxyquinoline-3-carbonitrile (CAS 622369-40-8)
- 6-chloro-4-(fluoromethyl)-8-oxa-3,5-diazatricyclo[7.4.0.0²,⁷]trideca-1(13),2,4,6,9,11-hexaene (CAS 2866468-33-7)
- 2-(4-Amino-2-ethoxyphenyl)pthalimide (CAS 106981-52-6)
- 6-Amino-1-(cyclopropylmethyl)-5,6,7,8-tetrahydroquinolin-2(1H)-one (CAS 1422059-23-1)
- 2-Bromo-5-ethoxy-4-methylbenzaldehyde (CAS 1350759-98-6)
- (2-iodobenzyl)triphenylphosphonium bromide (CAS 62680-65-3)
- Ceftriaxone Impurity 48 (CAS CATO-C4X-116348)
- methyl 6-oxobicyclo[2.2.1]heptane-2-carboxylate (CAS 70680-88-5)
- 1-(Cis-octahydrocyclohepta[c]pyrrol-2(1H)-yl)ethanone (CAS 89077-12-3)
- (Z)-Methyl octadec-12-enoate (CAS 2733-86-0)
- 1-Bromo-2,3,5-trifluorobenzene (CAS 133739-70-5)
- Osteogenic Growth Peptide (CAS 132996-61-3)
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