Letrozole Impurity 37 CAS 30132-90-2
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 30132-90-2 |
| Molecular Formula | C2H4N4 |
| Molecular Weight | 84.08 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Letrozole Impurity 37 (CAS 30132-90-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C2H4N4. Molecular weight: 84.08 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C2H4N4 |
| Molecular Weight | 84.08 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1965 |
| Nitrogen Atoms | 4 |
Related Letrozole Standards
- Letrozole Impurity 5 (CAS 124213-98-5)
- Letrozole Impurity 29 (CAS 612-13-5)
- Letrozole Impurity 30 (CAS 64407-07-4)
- Letrozole Impurity 38 (CAS 874-86-2)
- Letrozole Impurity N2 (CAS 84545-14-2)
- Letrozole Impurity 17 (CAS 112809-27-5)
- Letrozole Impurity 22 (CAS 876728-37-9)
- Letrozole Impurity 23 (CAS 876316-41-5)
Recommended Standards
- Metformin EP Impurity A (CAS 461-58-5)
- Baricitinib Impurity 33 (CAS 4843-98-5)
- Cefoperazone Impurity 45 (CAS 16681-77-9)
- Tepotinib impurity 8 (CAS CATO-C4X-33748)
- Empagliflozin Impurity 44 (CAS CATO-C4X-106544)
- 2-(Hydroxymethyl)pyridine-4-boronic Acid Pinacol Ester (CAS 1314135-84-6)
- 4-(6-Chloropyrimidin-4-yl)benzoic acid (CAS 750559-62-7)
- 3-[(1-methyl-1h-pyrazol-4-yl)carbamoyl]propanoic acid (CAS 1006470-52-5)
- (5,6-Dichloropyrazin-2-yl)zinc pivalate (0.80 mmol/g) (CAS 1643794-49-3)
- TAT 14 Peptide (Nrf2 Activator III) (CAS 1362661-34-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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