3-Chloro-4,5-dihydroxybenzaldehyde CAS 34098-18-5
| CAS No. | 34098-18-5 |
| Molecular Formula | C7H5ClO3 |
| Molecular Weight | 172.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3-Chloro-4,5-dihydroxybenzaldehyde (CAS 34098-18-5), molecular formula C7H5ClO3 and molecular weight 172.57 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H5ClO3, 3-Chloro-4,5-dihydroxybenzaldehyde contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 172.57 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures 3-Chloro-4,5-dihydroxybenzaldehyde under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H5ClO3 |
| Molecular Weight | 172.57 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 3-Chloro-5-methyl-2-nitropyridine (CAS 1210909-07-1)
- 6-Chloro-3-methyl-2-nitropyridine (CAS 1211516-41-4)
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Recommended Standards
- 3-Chloro-2-nitroaniline (CAS 59483-54-4)
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- 3-Chloro-6,7-dihydro-[1,4]dioxino[2,3-c]pyridazine (CAS 943026-40-2)
- 1,2-Dihydropyrimido[4,5-d]pyrimidin-4-amine (CAS 88526-65-2)
- Benzoyl-DL-aspartic acid (CAS 17966-68-6)
- Penicillin G Potassium Salt (CAS 113-98-4)
- Terbutaline Impurity 37 (CAS 28917-43-3)
- 6-Bromo-1,4-dioxaspiro[4.4]non-6-ene (CAS 68241-78-1)
- 2,4,5-trimethoxyphenol (CAS 20491-91-2)
- Ethyl 3-hydroxy-2-(trifluoromethyl)benzoate (CAS 161125-59-3)
- 2-Chloro-5-methoxy-4-methylbenzeneboronic acid (CAS 2096335-81-6)
- 3,5-Dibromo-2-iodotrifluoromethoxybenzene (CAS 1000578-23-3)
- Brain Injury Derived Neurotrophic Peptide (H-3914.0001) (CAS 148330-12-5)
Why CATO?
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