2-Chloro-6-nitrophenol CAS 603-86-1
| CAS No. | 603-86-1 |
| Molecular Formula | C6H4ClNO3 |
| Molecular Weight | 173.55 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.
2-Chloro-6-nitrophenol (CAS 603-86-1), molecular formula C6H4ClNO3 and molecular weight 173.55 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C6H4ClNO3, 2-Chloro-6-nitrophenol contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 173.55 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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 | C6H4ClNO3 |
| Molecular Weight | 173.55 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 methanol, ethanol, DMSO, water |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- 5-Chloro-6-oxo-1,6-dihydropyridine-2-carboxylic Acid (CAS 103997-21-3)
- 2-Chloro-5-hydroxyisonicotinic acid (CAS 1060804-57-0)
- 6-Chloro-4-hydroxypicolinic acid (CAS 1060809-87-1)
- 4-Chloro-6-nitrosoresorcinol (CAS 109755-36-4)
- 5-Chloro-3-hydroxypicolinic acid (CAS 1211515-34-2)
- 3-Chloro-4-hydroxypicolinic acid (CAS 1211518-09-0)
- 6-Chloro-5-hydroxynicotinic acid (CAS 1211531-26-8)
- 3-Chloro-5-hydroxypicolinic acid (CAS 1211536-84-3)
Recommended Standards
- 2-Chloro-5-nitrophenol (CAS 619-10-3)
- 3-Chloro-2,4-difluorobenzonitrile (CAS 887267-38-1)
- 2-Chloro-5-hydroxynicotinic acid (CAS 42959-40-0)
- 3-chloro-4-nitrophenol (CAS 491-11-2)
- 1,4,5,8-Tetraamino-2-bromo-6-(3-butylphenoxy)anthracene-9,10-dione (CAS 88602-04-4)
- 1-(3-(Hydroxymethyl)piperidin-1-yl)-2-(1H-1,2,4-triazol-1-yl)ethan-1-one (CAS 1156234-57-9)
- 3-Bromo-2-(difluoromethyl)-6-methylpyridine (CAS 1803696-22-1)
- 4-(Cyclopropylcarbamoyl)-2-methoxyphenylboronic acid (CAS 1351373-76-6)
- 213-46-7 F70R8ZBR7T Picene Benzo(a)chrysene 4-05-00-02724 (Beilstein Handbook Reference) 3,4-Benzchrysene beta,beta-Binaphthyleneethene BRN 1912414 CCRIS 3964 Dibenzo(a,i)phenanthrene 1,2:7,8-Dibenzophenanthrene 1,2,7,8-Dibenzphenanthrene EINECS 205-918-7 NSC 406006 Pycene UNII-F70R8ZBR7T (CAS 213-46-7)
- Strontium, [ethanedioato(2-)-O,O′]- (CAS 773788-57-1)
- (R)-tert-Butyl 3-(2-chloro-N-isopropylacetamido)pyrrolidine-1-carboxylate (CAS 1353994-81-6)
- (R)-9-Anthracenyl[3-(morpholine-4-carbonyl)-[1,4’-bipiperidin]-1’-yl]methanone4-carbonyl)-[1,4’-bipiperidin]-1’-yl)methanone (CAS 591778-68-6)
- H-D-Leu-pNA (CAS 63324-49-2)
- Pancreatic Polypeptide (1-17)-(Ala31,Aib32)-Neuropeptide Y (18-36) (human) trifluoroacetate salt (CAS 313988-70-4)
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