Laurotetanine impurity 1 CAS 128-76-7
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 128-76-7 |
| Molecular Formula | C19H21NO4 |
| Molecular Weight | 327.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Laurotetanine impurity 1 (CAS 128-76-7) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C19H21NO4. Molecular weight: 327.37 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C19H21NO4 |
| Molecular Weight | 327.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Recommended Standards
- Papaverine Impurity 38 (CAS 726117-59-5)
- Naloxone (CAS 465-65-6)
- Papaverine Impurity 27 (CAS 855737-36-9)
- Pramipexole Impurity 89 (CAS CATO-C4X-110789)
- Labetalol EP Impurity B HCl (CAS 33778-93-7)
- cis-5-Aminotetrahydro-2H-pyran-2-carboxylic acid (CAS 749175-42-6)
- N-(2,3-dichlorophenyl)-4-phenyl-1,2,3-thiadiazole-5-carboxamide (CAS 477857-85-5)
- (2E)-1-(2,4-Dimethoxyphenyl)-3-[4-(propan-2-yl)phenyl]prop-2-en-1-one (CAS 1002460-32-3)
- 2,2,2-Trifluoro-1-(4-(trifluoromethoxy)phenyl)ethan-1-ol (CAS 150698-82-1)
- 141801-03-8 IL-1 Receptor Peptide (human) (CAS 141801-03-8)
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