Sudan Black B Impurity 1 CAS 65322-64-7
| CAS No. | 65322-64-7 |
| Molecular Formula | C29H24N6 |
| Molecular Weight | 456.54 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Sudan Black B Impurity 1 (C29H24N6) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. The molecule exhibits a degree of unsaturation (DBE) of 21.0, corresponding to approximately 21 ring(s) or double-bond equivalent(s). With a molecular weight of 456.54 g/mol, it falls into the moderately-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.
CATO supplies Sudan Black B Impurity 1 (CAS 65322-64-7), a pharmacopoeial impurity reference standard (molecular formula C29H24N6, MW 456.54 g/mol) used for the identification and quantification of trace impurities in APIs.
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 Sudan Black B Impurity 1 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 | C29H24N6 |
| Molecular Weight | 456.54 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 6 |
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Why CATO?
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