Indocyanine Green Impurity 20 CAS 68579-35-1
| CAS No. | 68579-35-1 |
| Molecular Formula | C11H10N |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, Indocyanine Green Impurity 20 is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 191.66 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Indocyanine Green Impurity 20 (CAS 68579-35-1) is a certified pharmaceutical impurity reference standard with the molecular formula C11H10NCl and a molecular weight of 191.66 g/mol.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO manufactures Indocyanine Green Impurity 20 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H10N Cl |
| Molecular Weight | 191.66 g/mol |
| Purity | >90% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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
- Brinzolamide Impurity 13 (CAS 80-39-7)
- Oclacitinib impurity 28 (CAS CATO-C4X-301828)
- Edoxaban Impurity 68 (CAS 17899-48-8)
- N-(2-oxo-2-phenylethyl)-1,2-dihydronaphtho[2,1-b]furan-2-carboxamide (CAS 478078-35-2)
- 2-(Benzylimino)acetic acid (CAS 772312-20-6)
- 3,6-Di-tert-butyl-9-(4-vinylphenyl)-9H-carbazole (CAS 2229755-23-9)
- Xylenol Orange xsodium salt (CAS 24004-72-6)
- 5-Bromo-1-cyclopentyl-4-methyl-1H-imidazole (CAS 1856094-35-3)
- 2-((3-(3-Oxobenzo[d]isothiazol-2(3H)-yl)phenyl)sulfonamido)benzoic acid (CAS 521318-69-4)
- Semaglutide（sodium salt） (CAS CATO-C4X-222619)
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