2,5-Dihydroxybenzaldehyde CAS 1194-98-5
| CAS No. | 1194-98-5 |
| Molecular Formula | C7H6O3 |
| Molecular Weight | 138.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2,5-Dihydroxybenzaldehyde (CAS 1194-98-5), molecular formula C7H6O3 and molecular weight 138.12 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2,5-Dihydroxybenzaldehyde (C7H6O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 138.12 g/mol, it falls into the low-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.
Physical & Chemical Properties
| Molecular Formula | C7H6O3 |
| Molecular Weight | 138.12 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Dihydroxybenzaldehyde Standards
- 2,6-Dihydroxybenzaldehyde (CAS 387-46-2)
- 2,3-Dihydroxybenzaldehyde (CAS 24677-78-9)
- 2,4-Dihydroxybenzaldehyde (CAS 95-01-2)
- 4,5-Dihydroxybenzaldehyde-2,3,6-d (CAS 180028-20-0)
- 2,3-Dihydroxybenzaldehyde oxime (CAS 110827-84-4)
- 2,6-Dihydroxybenzaldehyde oxime (CAS 1331937-23-5)
- 2,4-Dihydroxybenzaldehyde oxime (CAS 5399-68-8)
- 5-Ethyl-2,4-dihydroxybenzaldehyde (CAS 37470-83-0)
Recommended Standards
- 2, 5- Dimethylpyrimidine- 4, 6- diol (CAS 1194-74-7)
- 1-(Prop-2-yn-1-yl)imidazolidine-2,4-dione (CAS 119711-41-0)
- 1-(5-Hydroxypyrazin-2-yl)ethanone (CAS 1159813-33-8)
- 5-Methylpyridazine-3-carboxylic acid (CAS 1211578-14-1)
- Methyl 5,5-dimethylthiazolidine-4-carboxylate (CAS 85929-61-9)
- [(3R)-4-methyl-5-oxo-morpholin-3-yl]methyl 4-methylbenzenesulfonate (CAS 1948235-83-3)
- (2S,3R)-2-(5-(Tert-butoxycarbonyl)-1-oxo-2,5-diazaspiro[3.4]octan-2-yl)-3-hydroxybutanoic acid (CAS 1621435-15-1)
- (1S,2R,4S,5R)-2-((S)-Hydroxy(quinolin-4-yl)methyl)-1-((3,3'',5,5''-tetrakis(trifluoromethyl)-[1,1':3',1''-terphenyl]-5'-yl)methyl)-5-vinylquinuclidin-1-ium bromide (CAS 1257261-49-6)
- 2-((2-Methylbenzyl)oxy)benzaldehyde (CAS 447409-55-4)
- Tert-butyl (S)-1-(4-bromophenyl)-6-azaspiro[2.5]Octane-6-carboxylate (CAS 2415204-32-7)
- 1-Hexadecyl-2-acetyl-sn-glycerol (CAS 77133-35-8)
- 2-(3-Phenyl-4,5-dihydro-1H-pyrazol-5-yl)phenol (CAS 107095-39-6)
- Praseodymium(III) nitrate hexahydrate (CAS 15878-77-0)
- Lixisenatide (CAS 320367-13-3（free base）)
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