5-Methylpyrimidine-2-sulfonyl fluoride CAS 35762-75-5
| CAS No. | 35762-75-5 |
| Molecular Formula | C5H5FN2O2S |
| Molecular Weight | 176.17 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-Methylpyrimidine-2-sulfonyl fluoride.
5-Methylpyrimidine-2-sulfonyl fluoride (CAS 35762-75-5) is a high-purity analytical reference standard with the molecular formula C5H5FN2O2S and a molecular weight of 176.17 g/mol.
Structurally, 5-Methylpyrimidine-2-sulfonyl fluoride (C5H5FN2O2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 176.17 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C5H5FN2O2S |
| Molecular Weight | 176.17 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 DMSO, DMF, methanol |
| 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.) | 1967 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Methylpyrimidine Standards
- 4-Methylpyrimidine-2-sulfonyl fluoride (CAS 35762-74-4)
- 4-Methylpyrimidine-2-sulfonamide (CAS 35762-77-7)
- 5-Methylpyrimidine-2-sulfonamide (CAS 35762-78-8)
- ethyl 2-methylpyrimidine-5-carboxylate (CAS 2134-38-5)
- 2-Methylpyrimidine-4,5-dicarboxylic acid (CAS 241469-86-3)
- 5-Methylpyrimidine-4,6-dicarboxylic acid (CAS 2010958-16-2)
- 1-Acetyl-6-methylpyrimidine-2,4(1H,3H)-dione (CAS 568551-00-8)
- 5-Acetyl-1-methylpyrimidine-2,4(1H,3H)-dione (CAS 36980-85-5)
Recommended Standards
- 5-Methylpyrazolo[1,5-a]pyridine-2-carboxylic acid (CAS 876379-72-5)
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- 5-Methylimidazo[1,2-a]pyridine-2-carboxylic Acid (CAS 88751-06-8)
- 5-Phenylhydantoin (CAS 89-24-7)
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- 2'-Bromo-9,9'-spirobi[fluoren]-2-ol (CAS 1298108-45-8)
- Ethyl 3-(4-Pyridyl)propiolate (CAS 66869-71-4)
- 2-((4-((3,4-Dimethylphenyl)amino)pteridin-2-yl)amino)ethan-1-ol (CAS 946349-02-6)
- 1-[(3aS,8aS)-Tetrahydro-2,2-dimethyl-4,4,8,8-tetraphenyl-1,3-dioxolo[4,5-e][1,3,2]dioxaphosphepin-6-yl]pyrrolidine (CAS 582298-51-9)
- 1,1-Dimethylethyl N-[[4-(aminomethyl)cyclohexyl]methyl]carbamate (CAS 174959-91-2)
- Ethyl 6-methyl-1-oxaspiro[2.6]nonane-2-carboxylate (CAS 1561409-18-4)
- Tirzepatide Impurity 1 (CAS 2460751-66-8)
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