Norethisterone EP Impurity G CAS 38673-36-8
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 38673-36-8 |
| Molecular Formula | C20H26O2 |
| Molecular Weight | 298.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Norethisterone EP Impurity G (CAS 38673-36-8) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C20H26O2. Molecular weight: 298.42 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C20H26O2 |
| Molecular Weight | 298.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
Related Norethisterone Standards
- Norethisterone EP Impurity D (CAS 68-23-5)
- Norethisterone EP Impurity C (CAS 22933-71-7)
- Norethisterone EP Impurity A (CAS 31528-46-8)
- Norethisterone EP Impurity E (CAS 79727-03-0)
- Norethisterone EP Impurity H (CAS 51724-44-8)
- Norethisterone EP Impurity F (CAS 96487-85-3)
- Norethisterone Acetate (CAS 51-98-9)
- Norethisterone Acetate EP Impurity C (CAS 1175129-26-6)
Recommended Standards
- Exemestane EP Impurity H (CAS 122370-91-6)
- Exemestane EP Impurity E (CAS 19457-55-7)
- Betamethasone Impurity 126 (CAS 90039-84-2)
- Orforglipron impurity 75 (CAS CATO-C4X-323475)
- Lumefantrine Impurity 3 (CAS 1795129-61-1)
- tert-Butyl (1-(4-(aminomethyl)phenyl)pyrrolidin-3-yl)carbamate (CAS 889948-66-7)
- 3-((3,4-Dichlorophenyl)amino)-1-(p-tolyl)propan-1-one (CAS 882748-78-9)
- (S)-Ethyl 2',3',4',9'-tetrahydrospiro[cyclobutane-1,1'-pyrido[3,4-b]indole]-3'-carboxylate (CAS 1956437-41-4)
- 4-amino-3-(3-hydroxypropoxy)benzoic acid (CAS 1305431-42-8)
- Semaglutide Impurity 162 (x TFA Salt) (CAS CATO-C4X-2226162)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com