1-methyl-4-nitro-1H-pyrazole-3-sulfonyl chloride CAS 1697720-32-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1697720-32-3 |
| Molecular Formula | C4H4ClN3O4S |
| Molecular Weight | 225.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1-methyl-4-nitro-1H-pyrazole-3-sulfonyl chloride (CAS 1697720-32-3), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C4H4ClN3O4S. Molecular weight: 225.61 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C4H4ClN3O4S |
| Molecular Weight | 225.61 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related methyl Standards
- 1-Methyl-4-nitro-1h-imidazole-5-sulfonyl chloride (CAS 101257-84-5)
- 1-Methyl-5-nitro-1H-imidazole-4-sulfonyl chloride (CAS 101258-46-2)
- 1-Methyl-4-nitro-1h-pyrazole-5-sulfonyl chloride (CAS 1365941-03-2)
- 1-Methyl-3-nitro-1h-pyrazole-4-sulfonyl chloride (CAS 1423033-93-5)
- 3-Nitro-1-octyl-1h-pyrazole (CAS 1003011-98-0)
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- 4-Nitro-1-(octan-2-yl)-1h-pyrazole (CAS 1240570-05-1)
- 1-(2-(4-Nitro-1H-pyrazol-1-yl)ethyl)piperazine (CAS 1248142-10-0)
Recommended Standards
- 1-(4-Chloro-3-fluorophenyl)-1H-1,2,3-triazole-4-carbaldehyde (CAS 1492834-85-1)
- Methyl 5-(chlorosulfonyl)isoxazole-3-carboxylate (CAS 1909326-52-8)
- 1-(4-Chloro-2-fluorophenyl)-1H-1,2,3-triazole-4-carbaldehyde (CAS 1483769-03-4)
- Methyl 2-(2,4-dichlorobenzamido)-3-(phenylamino)acrylate (CAS 1164508-13-7)
- 3-Phenyl-2-thioxo-2,3,6,7-tetrahydrothieno[3,2-d]pyrimidin-4(1H)-one (CAS 1022363-09-2)
- 4-Methoxybenzo[b]thiophene-2-carbonitrile (CAS 476199-13-0)
- beta-Cyclocitral (CAS 432-25-7)
- 2,3,4,9-Tetrahydro-1H-fluorene (CAS 17057-95-3)
- 74-82-8 OP0UW79H66 Methane Methane in gaseus state R 50 (refrigerant) 4-01-00-00003 (Beilstein Handbook Reference) Biogas BRN 1718732 EINECS 200-812-7 Fire Damp HSDB 167 Marsh gas Methyl hydride UNII-OP0UW79H66 EC 200-812-7 Methane, compressed or natural gas, compressed (with high methane content) [UN1971] [Flammable gas] Methane, refrigerated liquid (cryogenic liquid) or natural gas, refrigerated liquid (cryogenic liquid) (with high methane content) [UN1972] [Flammable gas] UN1971 UN1972 Methane, compressed or natural gas, compressed (with high methane content) Methane, refrigerated liquid (cryogenic liquid) or natural gas, refrigerated liquid (cryogenic liquid) (with high methane content) (CAS 74-82-8)
- Semaglutide impurity 275 (CAS CATO-C4X-2226275)
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