(E)-2-((2-hydroxybenzylidene)amino)phenol CAS 1624-54-0
| CAS No. | 1624-54-0 |
| Molecular Formula | C13H11NO2 |
| Molecular Weight | 213.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (E)-2-((2-hydroxybenzylidene)amino)phenol 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.
CATO supplies (E)-2-((2-hydroxybenzylidene)amino)phenol (CAS 1624-54-0), a certified reference material (molecular formula C13H11NO2, MW 213.23 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, (E)-2-((2-hydroxybenzylidene)amino)phenol is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 213.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C13H11NO2 |
| Molecular Weight | 213.23 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related E Standards
- (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)
- (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)-3-((2-hydroxybenzylidene)amino)benzonitrile (CAS 1133909-87-1)
- 4-((2-Hydroxybenzylidene)amino)benzonitrile (CAS 33721-67-4)
Recommended Standards
- 8-Methoxy-2-methylbenzofuro[2,3-b]pyridine (CAS 1609373-96-7)
- 2-Methoxy-5-(pyridin-2-yl)benzaldehyde (CAS 163257-19-0)
- 3-methyl-6-nitro-quinazolin-4-one (CAS 16064-13-4)
- 2-Methoxy-5-(pyridin-3-yl)benzaldehyde (CAS 163257-23-6)
- 4-Amino-5-bromopyridin-3-ol (CAS 1417618-13-3)
- 2-Bromo-5-(methylsulfonyl)benzenesulfonamide (CAS 1345021-19-3)
- 2-(4-Methyl-1H-pyrazol-1-yl)nicotinonitrile (CAS 1119391-07-9)
- N-24:0 (2S-OH) Phytosphingosine (CAS 154801-34-0)
- 6-cyclopropyl-3-neopentylisoxazolo[5,4-b]pyridine-4-carboxylic acid (CAS 953891-08-2)
- 3-(prop-2-en-1-yloxy)propan-1-ol (CAS 6180-67-2)
- 1-(4,5,6,7-Tetrahydro-1H-benzo[d]imidazol-2-yl)ethan-1-amine dihydrochloride (CAS 1820649-49-7)
- (3,5-Diiodosalicylato)(5-nitro-8-quinolinolato)copper (CAS 14040-02-9)
- 5-Bromo-6-hydroxy-2-isopropylpyrimidin-4(1H)-one (CAS 62091-89-8)
- Erythropoietin Mimetic Peptide Sequence 20 (CAS 203397-62-0)
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