3,3′-Dichlorobenzidine Dihydrochloride CAS 612-83-9
| CAS No. | 612-83-9 |
| Molecular Formula | C12H10Cl2N2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3,3′-Dichlorobenzidine Dihydrochloride.
CATO supplies 3,3′-Dichlorobenzidine Dihydrochloride (CAS 612-83-9), a certified reference material (molecular formula C12H10Cl2N2HCl, MW 289.58 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, 3,3′-Dichlorobenzidine Dihydrochloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 289.58 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C12H10Cl2N2 2*HCl |
| Molecular Weight | 289.58 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Dichlorobenzidine Standards
Recommended Standards
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- Azo Dyes Mix 26 (CAS CATO-MAZO111434-ME)
- 2-Cyclopentyl-3-(2,4-dichlorophenyl)-1-oxo-1,2,3,4-tetrahydroisoquinoline-4-carboxylic acid (CAS 400073-92-9)
- 6-Methyl-[1,2,4]triazolo[1,5-a]pyrimidine-2-carboxylic acid (CAS 1018144-12-1)
- 14867-54-0 Gadolinium, isotope of mass 152 Gadolinium-152 (CAS 14867-54-0)
- 2-Amino-5,5-dimethyl-4-oxohexanoic acid hydrochloride (CAS 1423024-68-3)
- 4-(Methylamino)butan-2-ol (CAS 42142-55-2)
- Semaglutide Impurity 145 (CAS CATO-C4X-2226145)
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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