4-Chloro-3,5-dinitropyridine CAS 10425-70-4
| CAS No. | 10425-70-4 |
| Molecular Formula | C5H2ClN3O4 |
| Molecular Weight | 203.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-Chloro-3,5-dinitropyridine (CAS 10425-70-4), a certified reference material (molecular formula C5H2ClN3O4, MW 203.54 g/mol) for analytical method development and quality control.
4-Chloro-3,5-dinitropyridine (C5H2ClN3O4) contains a carbohydrate-derived structure, an amide group, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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 | C5H2ClN3O4 |
| Molecular Weight | 203.54 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) | 6.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
- 3-Chloro-2,6-dinitropyridine (CAS 101079-67-8)
- 5-Chloro-6-nitropyrazine-2-carboxylic acid (CAS 1507759-83-2)
- 2-Chloro-3,5-dinitropyridine (CAS 2578-45-2)
- 4-Chloro-2-fluoro-5-nitrobenzaldehyde (CAS 1639298-89-7)
- 4-Chloro-5-fluoro-2-nitrobenzaldehyde (CAS 184843-93-4)
- 2-Chloro-4-fluoro-5-nitrobenzaldehyde (CAS 99329-85-8)
- 2-Chloro-6-fluoro-3-nitrobenzaldehyde (CAS 899821-26-2)
- 5-Chloro-4-fluoro-2-nitrobenzaldehyde (CAS 213382-47-9)
Recommended Standards
- 2,4-dichloro-6-(chloromethyl)pyrimidine (CAS 94170-66-8)
- 5-bromo-3-chloro-1,2,4-thiadiazole (CAS 213325-82-7)
- N-(trifluoroacetyl)-Alanyl Chloride (CAS 1597-19-9)
- 3-bromo-5-chloro-1,2,4-thiadiazole (CAS 37159-60-7)
- 1-Amino-2-naphthoic Acid (CAS 4919-43-1)
- 3-(2-Bromo-5-methoxyphenyl)propan-1-ol (CAS 132934-19-1)
- Ethyl 2-(4-bromo-5-fluoro-2-hydroxyphenyl)acetate (CAS 1807117-87-8)
- 141399-54-4 4-(Chloromethyl)-2-furan-2-yl-5-methyloxazole 4-chloromethyl-2-furan-2-yl-5-methyl-oxazole 4-chloromethyl-5-methyl-2-(fur-2-yl)oxazole 4-chloromethyl-5-methyl-2-(furan-2-yl)oxazole (CAS 141399-54-4)
- Ethyl 5-(Bromomethyl)isoxazole-3-carboxylate (CAS 84654-29-5)
- N-(5-Chloro-4-methyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)acetamide (CAS 1374606-62-8)
- 2-(3-Bromobenzylidene)malononitrile (CAS 2972-74-9)
- 2-Bromo-6-chloro-4-iodopyridin-3-ol (CAS 2816069-75-5)
- 4-Chloro-2-fluoro-1-(phenylmethoxy)benzene (CAS 1044067-73-3)
- Peptide Impurity 41 (CAS CATO-CPTD788841)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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