3-Chloro-1,2-benzenediamine CAS 21745-41-5
| CAS No. | 21745-41-5 |
| Molecular Formula | C6H7ClN2 |
| Molecular Weight | 142.59 g/mol |
| 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-Chloro-1,2-benzenediamine.
CATO supplies 3-Chloro-1,2-benzenediamine (CAS 21745-41-5), a certified reference material (molecular formula C6H7ClN2, MW 142.59 g/mol) for analytical method development and quality control.
3-Chloro-1,2-benzenediamine (C6H7ClN2) contains a nitrile group, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
CATO manufactures 3-Chloro-1,2-benzenediamine 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 | C6H7ClN2 |
| Molecular Weight | 142.59 g/mol |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 3-Chloro-4-methylpyridin-2-amine (CAS 56960-76-0)
- 2-Ethylhexyl iodide (CAS 1653-16-3)
- (5-Ethoxypyridin-2-yl)boronic acid (CAS 1191923-38-2)
- 3,4-Diacetoxy-1-butene (CAS 18085-02-4)
- 2-Chloro-6-methyl-3,4'-bipyridine (CAS 1214356-35-0)
- 3-(Piperazin-1-yl)-6-(trifluoromethyl)pyridazine (CAS 845618-11-3)
- 1-(6-Methyl-1,2,3,4-tetrahydroquinolin-5-yl)thiourea (CAS 691891-04-0)
- Iodixanol EP Impurity C (CAS 171897-74-8)
- Sulfisomidine Sodium (CAS 2462-17-1)
- 1-[(2,4-Difluorophenyl)methyl]-3-nitro-1h-pyrazole (CAS 1240572-25-1)
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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