Methyl 1-(methylsulfonyl)-1h-pyrazole-3-carboxylate CAS 1005631-68-4
| CAS No. | 1005631-68-4 |
| Molecular Formula | C6H8N2O4S |
| Molecular Weight | 204.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C6H8N2O4S, Methyl 1-(methylsulfonyl)-1h-pyrazole-3-carboxylate contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 204.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Methyl 1-(methylsulfonyl)-1h-pyrazole-3-carboxylate (CAS 1005631-68-4) is a high-purity analytical reference standard with the molecular formula C6H8N2O4S and a molecular weight of 204.20 g/mol.
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), Methyl 1-(methylsulfonyl)-1h-pyrazole-3-carboxylate 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 | C6H8N2O4S |
| Molecular Weight | 204.20 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 5-(2-Fluoro-4-methylphenyl)furan-2-carbaldehyde (CAS 1001010-59-8)
- Methyl 5-methyl-2h-1,2,6-thiadiazine-3-carboxylate 1,1-dioxide (CAS 1011400-15-9)
- 5-(4-Fluoro-2-methylphenyl)furan-2-carbaldehyde (CAS 1001010-58-7)
- 1-(4-Fluorophenyl)-5-oxopyrrolidine-3-carbonitrile (CAS 1017458-39-7)
- 4-Cyanophenyl methanesulfonate (CAS 138373-10-1)
- 4-(((Cyclopropylmethyl)sulfonyl)methyl)piperidine hydrochloride (CAS 1185295-04-8)
- 2-(Bromo-ethoxycarbonyl-methyl)-benzoic acid ethyl ester (CAS 79016-11-8)
- Maltol Related Compound 3 (CAS 153465-36-2)
- N-(3-(Phenylamino)allylidene)aniline hydrochloride (CAS 28140-60-5)
- tert-butyl N-[4-(2,5-difluorophenyl)-4-oxo-butyl]carbamate (CAS 1919868-79-3)
- (1R)-1-(2-methyloxolan-2-yl)ethan-1-ol (CAS 1568369-85-6)
- 2-(3-Nitrophenoxy)ethane-1-sulfonyl chloride (CAS 1339388-84-9)
- (4-(4-Chlorophenyl)-5-(2'-fluoro-4'-propyl-[1,1'-biphenyl]-4-yl)-1H-pyrazol-1-yl)(p-tolyl)methanone (CAS 477762-86-0)
- D-Ile12-Tirzepatide (CAS CATO-CPTD788921)
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