3,4-Diformylbenzonitrile CAS 19047-20-2
| CAS No. | 19047-20-2 |
| Molecular Formula | C9H5NO2 |
| Molecular Weight | 159.14 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 3,4-Diformylbenzonitrile.
CATO supplies 3,4-Diformylbenzonitrile (CAS 19047-20-2), a certified reference material (molecular formula C9H5NO2, MW 159.14 g/mol) for analytical method development and quality control.
3,4-Diformylbenzonitrile (C9H5NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 | C9H5NO2 |
| Molecular Weight | 159.14 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 1 |
Related Diformylbenzonitrile Standards
Recommended Standards
- rel-(2S,4S)-Pyrrolidine-2,4-dicarboxylic acid (CAS 188345-76-8)
- rac-(2R,5S)-5-carbamoyloxolane-2-carboxylic acid (CAS 1932032-42-2)
- (R)-2-(2-Oxopropanamido)propanoic acid (CAS 188300-91-6)
- Methyl 3-hydroxy-2-nitrosopent-2-enoate (CAS 1937358-65-0)
- (r)-5-(1-Amino-2-hydroxyethyl)-3-methoxybenzene-1,2-diol (CAS 1213320-12-7)
- Propan-2-yl pyridine-3-carboxylate (CAS 553-60-6)
- N1-(2-(Dimethylamino)ethyl)-N2-(3-(2-oxopyrrolidin-1-yl)phenyl)oxalamide (CAS 941957-83-1)
- 22509-74-6 DGO9NPX8LS N-Carbethoxyphthalimide Ethyl 1,3-dihydro-1,3-dioxo-2H-isoindole-2-carboxylate 2H-Isoindole-2-carboxylic acid, 1,3-dihydro-1,3-dioxo-, ethyl ester 2-Isoindolinecarboxylic acid, 1,3-dioxo-, ethyl ester 5-21-10-00428 (Beilstein Handbook Reference) AI3-52139 BRN 0196340 N-Carboethoxyphthalimide EINECS 245-048-5 N-(Ethoxycarbonyl)phthalimide Ethyl N-phthaloylcarbamate N-Karbetoksi-ftalimid [Yugoslavian] NSC 76576 Phthalimide-N-carbethoxy N-Karbetoksi-ftalimid UNII-DGO9NPX8LS (CAS 22509-74-6)
- 3-Chloro-2-cyanophenylboronic acid neopentyl glycol ester (CAS 883899-06-7)
- 3-chloranyl-6-pyrrolidin-1-yl-pyridazine 3-chloro-6-(1-pyrrolidinyl)pyridazine 66346-85-8 A835428 (CAS 66346-85-8)
- Phenyl(3-(trifluoromethyl)phenyl)methanamine (CAS 70428-92-1)
- 4’-Azidoacetophenone (CAS 20062-24-2)
- 2-Neopentylquinazolin-4(1H)-one (CAS 13193-68-5)
- D-Asp15-Tirzepatide (CAS CATO-CPTD788919)
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