Indocyanine Green Impurity 40 CAS 2550577-41-6
| CAS No. | 2550577-41-6 |
| Molecular Formula | C15H15N |
| Molecular Weight | 209.29 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO supplies Indocyanine Green Impurity 40 (CAS 2550577-41-6), a pharmacopoeial impurity reference standard (molecular formula C15H15N, MW 209.29 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Indocyanine Green Impurity 40 (C15H15N) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 209.29 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C15H15N |
| Molecular Weight | 209.29 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2001 |
| Nitrogen Atoms | 1 |
Related Indocyanine Standards
- Indocyanine Green Impurity 39 (CAS 2589435-65-2)
- Indocyanine Green Impurity 9 (CAS 41532-84-7)
- Indocyanine Green Impurity 19 (CAS CATO-C4X-250319)
- Indocyanine Green Impurity 65 (CAS CATO-C4X-250365)
- Indocyanine Green Impurity 26 (CAS 40880-56-6)
- Indocyanine Green Impurity 41 (CAS 2581870-51-9)
- Indocyanine green Impurity 56 (CAS CATO-C4X-250356)
- Indocyanine Green Impurity 18 (CAS CATO-C4X-250318)
Recommended Standards
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- Ethyl 5-amino-4-chloro-1-(4-methoxyphenyl)-1H-pyrazole-3-carboxylate (CAS 1427014-18-3)
- Others Impurity 20 (CAS CATO-C3D-262620)
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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