3,5-DINITRO-ORTHO-CRESOL CAS 497-56-3
| CAS No. | 497-56-3 |
| Molecular Formula | C7H6N2O5 |
| Molecular Weight | 198.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 3,5-DINITRO-ORTHO-CRESOL (CAS 497-56-3), a certified reference material (molecular formula C7H6N2O5, MW 198.13 g/mol) for analytical method development and quality control.
The molecular framework of 3,5-DINITRO-ORTHO-CRESOL (C7H6N2O5) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), 3,5-DINITRO-ORTHO-CRESOL 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 | C7H6N2O5 |
| Molecular Weight | 198.13 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Related DINITRO Standards
- 2,6-Dinitro-4-Methylphenol (CAS 609-93-8)
- 4,6-Dinitro-1,3-benzenediamine (CAS 4987-96-6)
- 3,6-Dinitro-1,4-dihydropyrazolo[4,3-c]pyrazole (CAS 161155-37-9)
- 4,6-Dinitro-o-toluidine (CAS 7477-94-3)
- 1-Methyl-3,5-dinitro-1H-pyridin-2-one (CAS 14150-94-8)
- 2,4-Dinitro-m-xylene (CAS 603-02-1)
- 2,4-Dinitro-5-fluorotoluene (CAS 349-01-9)
- 4,6-Dinitro-2-methylphenol-3,5-d2 (CAS 93951-76-9)
Recommended Standards
- 3,5-Dinitroanisole (CAS 5327-44-6)
- 3,6-Dihydroxyphthalic acid (CAS 3786-46-7)
- 3-(Methoxycarbonyl)-4-nitropyridine 1-oxide (CAS 98550-10-8)
- 4,5-dihydroxybenzene-1,2-dicarboxylic acid (CAS 63958-66-7)
- 3-Bromo-4-chloro-5-nitropyridin-2-amine (CAS 1934702-94-9)
- (4-nitro-1,2-phenylene)dimethanol (CAS 22162-19-2)
- 6-(4-Fluorophenyl)-2-phenoxynicotinonitrile (CAS 252059-98-6)
- Diethyl 4-hydroxyquinoline-3,6-dicarboxylate (CAS 41460-20-2)
- 2-Aminododecanoic acid (CAS 35237-37-7)
- 1-methoxypropane-2-sulfonyl chloride (CAS 1249353-51-2)
- Minocycline EP Impurity A (HCl salt) (CAS 179471-96-6)
- 1-(Oxazol-2-yl)undecan-1-one (CAS 898758-45-7)
- 2-(2,6-Dichlorophenyl)-2-(methylamino)acetic acid (CAS 1218208-93-5)
- Semaglutide impurity 260 (CAS CATO-C4X-2226260)
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