Pyridostigmine CAS 155-97-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 155-97-5 |
| Molecular Formula | C9H13N2O2 |
| Molecular Weight | 181.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Pyridostigmine (CAS 155-97-5) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C9H13N2O2. Molecular weight: 181.21 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C9H13N2O2 |
| Molecular Weight | 181.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Related Pyridostigmine Standards
- Pyridostigmine Impurity 5 (CAS CATO-C4X-26305)
- Pyridostigmine Bromide EP Impurity A (CAS 51581-32-9)
- Pyridostigmine Bromide Hydroxy Impurity (CAS 587-32-6)
- Pyridostigmine Bromide (CAS 101-26-8)
- Pyridostigmine-d3 Bromide (CAS 1633751-00-4)
- Pyridostigmine-d6 Bromide (CAS 2375858-08-3)
- Pyridostigmine EP Impurity B Bromide (CAS 31034-86-3)
- Pyridostigmine Impurity 2 (CAS 4685-07-8(free base))
Recommended Standards
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- 8-Bromo-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole (CAS 497261-38-8)
- 5-Bromo-3-methyl-1H-pyrazole-4-carboxylic acid (CAS 2510868-43-4)
- 2-(2,2-Dimethylthiomorpholino)butan-1-amine (CAS 1601075-38-0)
- 635679-24-2 {1,3-Bis[2,6-di(propan-2-yl)phenyl]imidazolidin-2-ylidene}(dichloro)({2-[(propan-2-yl)oxy]phenyl}methylidene)ruthenium DTXSID10746402 (CAS 635679-24-2)
- 5-(Methylcarbamoyl)picolinic acid (CAS 1154914-12-1)
- N-(6-Chloropyridin-3-yl)acetamide (CAS 29958-18-7)
- endo-Ser39-Tirzepatide (CAS CATO-CPTD788935)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com