Estradiol Valerate EP Impurity H CAS 1421283-56-8
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 1421283-56-8 |
| Molecular Formula | C28H40O4 |
| Molecular Weight | 440.61 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Estradiol Valerate EP Impurity H (CAS 1421283-56-8), a pharmacopoeial impurity standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C28H40O4. Molecular weight: 440.61 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C28H40O4 |
| Molecular Weight | 440.61 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
Related Estradiol Standards
- Estradiol Valerate Impurity 20 (CAS CATO-C4X-284220)
- Estradiol Valerate EP Impurity E (CAS 63042-28-4)
- Estradiol Impurity 35 (CAS 1373116-15-4)
- β-Estradiol 3-benzoate 17-n-butyrate (CAS 63042-18-2)
- 17β-Estradiol 17β-D-Glucuronide (CAS 1806-98-0)
- 17beta-Estradiol 3-beta-D-Glucuronide (CAS 15270-30-1)
- β-Estradiol 3,17-DisulfateDISCONTINUED, offer E888945 (CAS 3233-70-3)
- Estradiol Impurity 43 (CAS 19590-55-7)
Recommended Standards
- 1,3,5,7-Tetraphenyladamantane (CAS 16004-75-4)
- Prucalopride Impurity 54 (CAS CATO-C4X-103854)
- Bempedoic Acid Impurity 41 (CAS CATO-C4X-218941)
- Clevidipine butyrate Impurity 9 (CAS CATO-C4X-10159)
- Econazole Impurity 9 (CAS CATO-C4X-13279)
- 2,2,2-Trichloro-1-(3,5-dimethyl-1H-pyrazol-1-yl)ethanone (CAS 544460-00-6)
- 4-Amino-2-(difluoromethyl)-5-nitronicotinonitrile (CAS 1805335-85-6)
- 2,2'-((4-Hydroxybenzyl)azanediyl)bis(ethan-1-ol) (CAS 51527-97-0)
- 2-Cyclohexyl-6-hydroxypyrimidin-4(3H)-one (CAS 94052-08-1)
- MCH-Gene-Overprinted-Polypeptide-14 (rat) (H-4746.0500) (CAS 182917-44-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com