Ethinylestradiol EP Impurity G CAS 38002-18-5
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 38002-18-5 |
| Molecular Formula | C20H22O3 |
| Molecular Weight | 310.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Ethinylestradiol EP Impurity G (CAS 38002-18-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C20H22O3. Molecular weight: 310.39 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C20H22O3 |
| Molecular Weight | 310.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
Related Ethinylestradiol Standards
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- Ethinylestradiol EP Impurity J (CAS 15071-66-6)
- Ethinylestradiol EP Impurity K (CAS 155683-61-7)
- Ethinylestradiol EP Impurity M (CAS 3240-39-9)
- Ethinylestradiol EP Impurity F (CAS 56324-28-8)
- Ethinylestradiol EP Impurity E (6-alpha-Hydroxy Ethynylestradiol) (CAS 27521-34-2)
- Ethinylestradiol 2-Hydroxy Impurity (CAS 50394-89-3)
Recommended Standards
- Praziquantel Impurity 5 (CAS 79848-92-3)
- Praziquantel EP Impurity B (CAS 125273-86-1)
- Dienogest Impurity 19 (CAS 7291-52-3)
- Ergosterol Impurity 9 (CAS 71075-32-6)
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- 1-(2-fluorophenyl)-6-(4-methylphenyl)-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 1011399-69-1)
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- 2-(Dimethylamino)-2-methylpropane-1,3-diol (CAS 63246-63-9)
- N,N-Di([1,1'-biphenyl]-4-yl)-[2,4'-bipyridin]-5-amine (CAS 917897-58-6)
- Des-[Gly]31-Semaglutide (CAS CATO-C4X-2226156)
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