Indocyanine Green Impurity 13 CAS 20893-80-5
| CAS No. | 20893-80-5 |
| Molecular Formula | C10H7N2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Indocyanine Green Impurity 13 (CAS 20893-80-5), molecular formula C10H7N2Cl and molecular weight 190.63 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Indocyanine Green Impurity 13 (C10H7N2Cl) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), Indocyanine Green Impurity 13 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 | C10H7N2 Cl |
| Molecular Weight | 190.63 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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.) | 1962 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Indocyanine Standards
- Indocyanine Green Impurity 10 (CAS 109-70-6)
- Indocyanine Green Impurity 42 (CAS 1182721-75-0)
- Indocyanine Green Impurity 4 (CAS 1201170-49-1)
- Indocyanine Green Impurity 64 (CAS 1351043-94-1)
- Indocyanine Green Impurity 24 (CAS 13959-24-5)
- Indocyanine Green Impurity 14 (CAS 1497-49-0)
- Indocyanine Green Impurity 27 (CAS 1563-87-7)
- Indocyanine Green-Succinimidyl Ester (CAS 1622335-40-3)
Recommended Standards
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- 2-(Chloromethyl)-4-(difluoromethyl)-5-methyl-3-nitropyridine (CAS 1805267-29-1)
- 7-Bromo-2-(pyridin-2-yl)phthalazin-1(2H)-one (CAS 1437480-65-3)
- 3-(4-Bromo-2-isopropylphenoxy)piperidinehydrochloride (CAS 1220032-71-2)
- [(3-Chlorophenyl)methyl](propyl)amine hydrochloride (CAS 90389-48-3)
- 5-Cyclopropoxy-2-isopropoxy-4-(methylthio)pyridine (CAS 1243379-94-3)
- (1-Isopropylcyclopropyl)methanamine (CAS 1015846-33-9)
- Des-Pro-Pro-Tirzepatide (CAS CATO-CPTD788696)
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