C3a (70-77) CAS 63555-63-5
| CAS No. | 63555-63-5 |
| Molecular Formula | C35H61N13O10 |
| Molecular Weight | 823.94 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including C3a (70-77).
C3a (70-77) (CAS 63555-63-5), molecular formula C35H61N13O10 and molecular weight 823.94 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, C3a (70-77) (C35H61N13O10) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 823.94 g/mol, it falls into the high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C35H61N13O10 |
| Molecular Weight | 823.94 g/mol |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 13 |
Recommended Standards
- (b-Ala70)-C3a (H-1650.0025) (CAS 105931-71-3)
- Entecavir Impurity 7 (CAS 1263274-06-1)
- (2R,3S,5R)-2-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-5-(2-(((dimethylamino)methylene)amino)-4-oxo-1,4-dihydro-7H-pyrrolo[2,3-d]pyrimidin-7-yl)tetrahydrofuran-3-yl (2-cyanoethyl) diisopropylphosphoramidite (CAS 121767-97-3)
- Entecavir Impurity 12 (CAS 142217-78-5)
- 4-(4-Bromophenyl)-2-(4-chlorophenyl)thiomorpholine-3,5-dione 1-oxide (CAS 252027-13-7)
- 4-Chloro-6,7-dimethoxyquinazolin-2-amine (CAS 91360-95-1)
- 5-Iodoquinolin-8-amine (CAS 142340-15-6)
- 2H-Thieno[2,3-d][1,3]oxazine-2,4(1H)-dione (CAS 103979-54-0)
- (1-Cyclopentyl-1h-pyrazol-3-yl)methanamine (CAS 1343600-26-9)
- 1-Hexyl-3-methyl-3-imidazolium Trifluoromethanesulfonate (CAS 460345-16-8)
- Ophiopogonin D (CAS 945619-74-9)
- 2-(6-Chloro-3-(difluoromethyl)-5-fluoropyridin-2-yl)acetonitrile (CAS 1805979-64-9)
- 1,4-Phenylene Bis(1,3-dioxo-1,3-dihydroisobenzofuran-5-carboxylate) (CAS 2770-49-2)
- D-Leu26-Tirzepatide (CAS CATO-CPTD788908)
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