(4-9)-Oxytocin CAS 72098-65-8
| CAS No. | 72098-65-8 |
| Molecular Formula | C25H43N9O8S |
| Molecular Weight | 629.73 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(4-9)-Oxytocin (CAS 72098-65-8) is a high-purity analytical reference standard with the molecular formula C25H43N9O8S and a molecular weight of 629.73 g/mol.
Based on its molecular formula C25H43N9O8S, (4-9)-Oxytocin contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 629.73 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C25H43N9O8S |
| Molecular Weight | 629.73 g/mol |
| Purity | >95% |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 9 |
| Sulfur Atoms | 1 |
Related Oxytocin Standards
- (3-9)-Oxytocin (CAS CATO-C4X-206615)
- (2-9)-Oxytocin (CAS CATO-C4X-206616)
- [Asu 1,6] Oxytocin (CAS 14317-68-1)
- Oxytocin impurity 50 (CAS CATO-C4X-206650)
- Oxytocin Impurity 44 (CAS CATO-C4X-206644)
- Oxytocin Acetate (CAS 6233-83-6)
- Leu3-Oxytocin (CAS 4294-11-5)
- Oxytocin Impurity 49 X TFA Salt (CAS CATO-C4X-206649)
Recommended Standards
- Boc-NH-PEG10-CH2CH2COOH (CAS 2410598-01-3)
- Carvedilol Impurity 25 (CAS 1076199-79-5)
- Diphenyl benzyl((1S,2R)-2-((4-fluorophenyl)thio)-1,2-diphenylethyl)phosphoramidite (CAS 2137862-60-1)
- Carvedilol EP Impurity A (CAS 1198090-73-1)
- 4,6-Dimethylisoquinoline (CAS 102878-55-7)
- 4-(3,4-Dichlorophenyl)tetrahydro-2H-pyran-4-amine (CAS 1152880-19-7)
- Tert-butyl (((9H-fluoren-9-yl)methoxy)carbonyl)-L-asparaginate (CAS 152781-25-4)
- Chloroform and Carbon tetrachloride Mix in Methanol (CAS CATO-MCHM702964-ME)
- 2-Fluoro-4-(2-oxopiperidin-1-yl)benzaldehyde (CAS 1024204-77-0)
- ABP 688 (CAS 924298-51-1)
- (3-Isopropoxy-propyl)-(1-methyl-piperidin-4-yl)-amine (CAS 799260-52-9)
- 2-(Difluoromethyl)-6-(trifluoromethoxy)phenol (CAS 1261778-45-3)
- Goserelin EP Impurity G TFA Salt (CAS 1926163-37-2(free base))
- Semaglutide impurity 235 (CAS CATO-C4X-2226235)
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 18665070610 / Nicole.chen@cato-chem.com