4-Nitrophenylhydrazine HCl CAS 636-99-7
| CAS No. | 636-99-7 |
| Molecular Formula | C6H7N3O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-Nitrophenylhydrazine HCl (CAS 636-99-7), a certified reference material (molecular formula C6H7N3O2HCl, MW 189.60 g/mol) for analytical method development and quality control.
The molecular framework of 4-Nitrophenylhydrazine HCl (C6H7N3O2HCl) is characterized by an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-Nitrophenylhydrazine HCl 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 | C6H7N3O2 HCl |
| Molecular Weight | 189.60 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Nitrophenylhydrazine Standards
- 4-Nitrophenylhydrazine (CAS 100-16-3)
- 3034-19-3 2-Nitrophenylhydrazine Hydrazine, (o-nitrophenyl)- 4-15-00-00304 (Beilstein Handbook Reference) BRN 0512797 EINECS 221-222-6 (CAS 3034-19-3)
- 5-Methyl-2-nitrophenylhydrazine (CAS 56637-42-4)
- p-Nitrophenylhydrazine sulfate (CAS 58332-97-1)
- 2-Nitrophenylhydrazine Hydrochloride (CAS 6293-87-4)
- 3-Nitrophenylhydrazine Hydrochloride (CAS 636-95-3)
Recommended Standards
- 6-Hydroxybenzofuran-7-carbaldehyde (CAS 59254-31-8)
- 6-Methoxy-2,2-dimethyl-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 928256-37-5)
- N-methyl-N-(2-methylbenzyl)furan-2-amine (CAS 225236-01-1)
- Ticagrelor Impurity 67 (CAS CATO-C4X-109367)
- Triamcinolone Hexacetonide (CAS 5611-51-8)
- 4-Methyl-1h-indazol-6-amine (CAS 885520-74-1)
- Pyridine-3,4,5-triamine (CAS 618439-82-0)
- N-((1-Benzylpiperidin-4-yl)methyl)-2-chloro-N-cyclopropylacetamide (CAS 1353965-28-2)
- 5-(3-Nitrophenyl)nicotinaldehyde (CAS 887973-57-1)
- Tripeptide-10 citrulline (CAS 960531-53-7)
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