Methyl 3-methylisothiazole-5-carboxylate CAS 15901-54-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 15901-54-9 |
| Molecular Formula | C6H7NO2S |
| Molecular Weight | 157.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 3-methylisothiazole-5-carboxylate (CAS 15901-54-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C6H7NO2S. Molecular weight: 157.19 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C6H7NO2S |
| Molecular Weight | 157.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- Methyl 5-methylisothiazole-4-carboxylate (CAS 15901-70-9)
- 3-Methylisothiazole-4-carbohydrazide (CAS 89179-69-1)
- Methyl 3-methylisothiazole-4-carboxylate (CAS 74410-97-2)
- Methyl 4-methylisothiazole-3-carboxylate (CAS 64024-47-1)
- 5-Methylisothiazole-3-carboxylic acid (CAS 110632-59-2)
- 5-Methylisothiazole-4-carboxylic acid (CAS 1125409-67-7)
- 4-Methylisothiazole-3-carboxylic acid (CAS 1507952-32-0)
- Ethyl 3-methylisothiazole-4-carboxylate (CAS 15901-51-6)
Recommended Standards
- 6-methyl-3-(methylsulfanyl)-4,5-dihydro-1,2,4-triazin-5-one (CAS 1566-32-1)
- 4-Amino-2-methylthiophene-3-carboxylic acid (CAS 1555795-28-2)
- Methyl 2-(1,3-thiazol-5-yl)acetate (CAS 16565-78-9)
- Rel-(1R,2S)-6'-bromo-2-methyl-spiro[cyclopropane-1,4'-isoquinoline]-1',3'-dione (CAS 2892253-25-5)
- 3-Bromo-5-chloro-2-ethynylpyridine (CAS 1211528-84-5)
- S-Deoxo-6-oxo-fulvestrant (CAS 1107606-70-1)
- 4-Fluoro-3-hydroxybenzonitrile (CAS 186590-04-5)
- Cefuroxime Axetil Impurity 11 (CAS CATO-C4X-143611)
- N-(Piperidin-3-yl)propionamide (CAS 886504-11-6)
- Insulin Degludec Impurity 11 (CAS CATO-C4X-215711)
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