3,3＇,5,5＇-Tetramethylbenzidine Dihydrochloride CAS 64285-73-0
| CAS No. | 64285-73-0 |
| Molecular Formula | C16H20N2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C16H20N2HCl, 3,3＇,5,5＇-Tetramethylbenzidine Dihydrochloride contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 276.81 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
3,3＇,5,5＇-Tetramethylbenzidine Dihydrochloride (CAS 64285-73-0), molecular formula C16H20N2HCl and molecular weight 276.81 g/mol, is a CATO reference standard with documented purity and traceability.
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), 3,3＇,5,5＇-Tetramethylbenzidine Dihydrochloride 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 | C16H20N2 2*HCl |
| Molecular Weight | 276.81 g/mol |
| Purity | >95% |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Tetramethylbenzidine Standards
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- 3-(dimethylcarbamoyl)-4-methoxybenzene-1-sulfonyl chloride (CAS 1114594-34-1)
- Semaglutide impurity 69 (CAS CATO-C4X-222669)
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