C-Peptide (Proinsulin) CAS 59112-80-0
| CAS No. | 59112-80-0 |
| Molecular Formula | C112H179N35O46 |
| Molecular Weight | 2751.83 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies C-Peptide (Proinsulin) (CAS 59112-80-0), a certified reference material (molecular formula C112H179N35O46, MW 2751.83 g/mol) for analytical method development and quality control.
Structurally, C-Peptide (Proinsulin) (C112H179N35O46) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 41.0, corresponding to approximately 41 ring(s) or double-bond equivalent(s). With a molecular weight of 2751.83 g/mol, it falls into the high-molecular-weight range. 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.
As a certified reference material (CRM), C-Peptide (Proinsulin) meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C112H179N35O46 |
| Molecular Weight | 2751.83 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) | 41.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 35 |
Related C Standards
- Peptide YY (13-36) (canine, mouse, porcine, rat) (CAS 86895-09-2)
- C-Peptide (human) (CAS 33017-11-7)
- Peptide 46 (H-4054.0500) (CAS 192122-40-0)
- Tau Peptide (45-73) (Exon 2/Insert 1 Domain) trifluoroacetate salt (CAS 2022956-54-1)
- C-Peptide 2 (rat) (CAS 41594-08-5)
- TAT 14 Peptide (Nrf2 Activator III) (CAS 1362661-34-4)
- C-Peptide（dog） (CAS 39016-05-2)
- C-Peptide 1 (rat) (CAS 41475-27-8)
Recommended Standards
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- Cetuximab (CAS 205923-56-4)
- 3,3,4-Trimethyl-Decane (CAS 49622-18-6)
- 2-(Cyclopentylamino)-2-phenylethan-1-ol (CAS 92687-06-4)
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- 3-Fluoro-5-methoxyisonicotinaldehyde (CAS 1256792-34-3)
- 3-(4-Nitrophenyl)-1-phenyl-1h-pyrazol-5-amine (CAS 926240-77-9)
- 4-(Dimethylamino)butan-2-ol (CAS 5867-64-1)
- 1-Benzyl-1,2,3,4-tetrahydroquinazoline-2,4-dione (CAS 20865-83-2)
- Oxazole, 2,2′-(1R)-[1,1′-binaphthalene]-2,2′-diylbis[4,5-dihydro-4,4-dimethyl- (CAS 93530-99-5)
- N-(2-(4-(4-chlorophenyl)piperazin-1-yl)-2-oxoethyl)-3-methylbenzamide (CAS 338419-57-1)
- Semaglutide impurity 331 (CAS CATO-C4X-2226231)
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 18665070610 / Nicole.chen@cato-chem.com