[1-(Methylsulfonyl)-4-pyrazolyl]boronic Acid CAS 1201643-87-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1201643-87-9 |
| Molecular Formula | C4H7BN2O4S |
| Molecular Weight | 189.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
[1-(Methylsulfonyl)-4-pyrazolyl]boronic Acid (CAS 1201643-87-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C4H7BN2O4S. Molecular weight: 189.99 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C4H7BN2O4S |
| Molecular Weight | 189.99 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 | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.5 |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Methylsulfonyl Standards
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- 5-(Methylsulfonyl)furan-2-carboxylic Acid (CAS 23423-91-8)
- 5-(Methylsulfonyl)pyrimidine-2,4(1H,3H)-dione (CAS 16417-11-1)
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- 6-(Methylsulfonyl)pyrimidine-2,4(1H,3H)-dione (CAS 6851-33-8)
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- 5-(Methylsulfonyl)-2-thiophenecarbaldehyde (CAS 177194-34-2)
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Recommended Standards
- 4,6-Dichloroisoxazolo[5,4-d]pyrimidine (CAS 1197193-09-1)
- 2-Bromo-5-methyloxazole-4-carbaldehyde (CAS 1240598-14-4)
- 1-Fluoronaphthalene-2-boronic acid (CAS 222547-67-3)
- 6-Chloro-N-(1,3,4-thiadiazol-2-yl)pyridine-3-carboxamide (CAS 908544-78-5)
- 5-Iodo-2,6-dimethyl-N-[(thiophen-2-yl)methyl]pyrimidin-4-amine (CAS 677749-62-1)
- 4'-Methyl-[1,1'-biphenyl]-4-amine hydrochloride (CAS 811842-54-3)
- Allyl 4-(benzyloxy)-3-chloro-5-ethoxybenzoate (CAS 1706452-19-8)
- 5-bromo-2-(difluoromethyl)-1-methyl-1H-1,3-benzodiazole (CAS 1451215-69-2)
- 1-(Bromomethyl)-1-(ethoxymethyl)cyclobutane (CAS 1478876-82-2)
- Semaglutide impurity 233 (CAS CATO-C4X-2226233)
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