4-Hydroxy Estradiol 1-N7-Guanine CAS 178971-91-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 178971-91-0 |
| Molecular Formula | C23H27N5O4 |
| Molecular Weight | 437.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Hydroxy Estradiol 1-N7-Guanine (CAS 178971-91-0) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C23H27N5O4. Molecular weight: 437.49 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C23H27N5O4 |
| Molecular Weight | 437.49 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2008 |
| Nitrogen Atoms | 5 |
Related Hydroxy Standards
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Recommended Standards
- 2-[4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-1,3-dioxo-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidin-2-yl]-N-(2-ethyl-6-methylphenyl)acetamide (CAS 1775502-92-5)
- 1-{2-[3-(3,4-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl]pyrrolidin-1-yl}-3-(4-methoxyphenyl)propan-1-one (CAS 1795293-65-0)
- 2-[4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-1,3-dioxo-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidin-2-yl]-N-(3-phenylpropyl)acetamide (CAS 1775484-63-3)
- Norit(R) A pract. (CAS 64365-11-3)
- 2-(3,8-Dibromo-5-methoxyquinolin-6-yl)acetonitrile (CAS 1257833-22-9)
- 2-Bromo-3-chloro-6-iodopyridine (CAS 1628502-46-4)
- 7-Chloro-3-phenyl-3,4-dihydro-2H-benzo[b][1,4]oxazine (CAS 1173183-89-5)
- Ethyl 5-amino-1-(2,4-dichlorobenzoyl)-1H-pyrazole-4-carboxylate (CAS 124281-80-7)
- 3-Ethoxy-2-fluoro-6-methyl-pyridine (CAS 1005515-12-7)
- Insulin Degludec Impurity 15 (CAS CATO-C4X-215715)
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