4-((2-Hydroxybenzylidene)amino)benzonitrile CAS 33721-67-4
| CAS No. | 33721-67-4 |
| Molecular Formula | C14H10N2O |
| Molecular Weight | 222.24 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 4-((2-Hydroxybenzylidene)amino)benzonitrile.
CATO supplies 4-((2-Hydroxybenzylidene)amino)benzonitrile (CAS 33721-67-4), a certified reference material (molecular formula C14H10N2O, MW 222.24 g/mol) for analytical method development and quality control.
Structurally, 4-((2-Hydroxybenzylidene)amino)benzonitrile (C14H10N2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 222.24 g/mol, it falls into the medium-molecular-weight range. 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.
As a certified reference material (CRM), 4-((2-Hydroxybenzylidene)amino)benzonitrile 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 | C14H10N2O |
| Molecular Weight | 222.24 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 2 |
Related Hydroxybenzylidene Standards
- (E)-3-((2-hydroxybenzylidene)amino)benzonitrile (CAS 1133909-87-1)
- (Z)-5-(4-Hydroxybenzylidene)thiazolidine-2,4-dione (CAS 154052-92-3)
- (E)-5-(3-hydroxybenzylidene)thiazolidine-2,4-dione (CAS 184840-72-0)
- (Z)-5-(2-hydroxybenzylidene)thiazolidine-2,4-dione (CAS 6325-94-6)
- (E)-5-(2-Hydroxybenzylidene)-2-thioxoimidazolidin-4-one (CAS 139554-57-7)
- (5E)-5-(4-Hydroxybenzylidene)-2-imino-1,3-thiazolidin-4-one (CAS 299953-00-7)
- 5-(2-Hydroxybenzylidene)-2-thioxoimidazolidin-4-one (CAS 636-86-2)
- 2-(4-Hydroxybenzylidene)-4,4-dimethyl-3-oxopentanenitrile (CAS 150300-51-9)
Recommended Standards
- 3-Pivalamidopicolinic acid (CAS 683242-32-2)
- 4-((Tetrahydro-2H-pyran-4-yl)oxy)benzoic acid (CAS 851048-51-6)
- 3-Phenyl-imidazo[1,5-a]pyridine-1-carbaldehyde (CAS 446830-54-2)
- 4-(1,8-Naphthyridin-2-yl)phenol (CAS 65182-55-0)
- 4-(prop-1-en-2-yl)oxan-4-ol (CAS 521275-90-1)
- N-(9-Acridinyl)maleamic Acid (CAS 66891-55-2)
- 5-(chloromethyl)-1-methyl-3-nitro-1H-pyrazole (CAS 1260659-05-9)
- 2-(4-Bromobenzoyl)cyclopentanecarboxylic acid (CAS 1019115-10-6)
- 2-Bromo-4-(difluoromethyl)-3-nitro-6-(trifluoromethyl)pyridine (CAS 1806998-84-4)
- 4-Hydrazinyl-6-methyl-1,3,5-triazin-2-amine (CAS 27419-09-6)
- 2,6-Dibromo-3,4-difluorotoluene (CAS 1804414-94-5)
- 1,3,5-Tributyl-1,3,5-triazinane (CAS 13036-83-4)
- 4-Chloro-2-((thiophen-2-ylmethyl)amino)thiazole-5-carbonitrile (CAS 866155-97-7)
- Acetyl-Tau Peptide (244-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 2022956-56-3)
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