6-Formyl-2,3-dihydroxybenzoic acid CAS 22231-81-8
| CAS No. | 22231-81-8 |
| Molecular Formula | C8H6O5 |
| Molecular Weight | 182.13 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 6-Formyl-2,3-dihydroxybenzoic acid.
6-Formyl-2,3-dihydroxybenzoic acid (CAS 22231-81-8), molecular formula C8H6O5 and molecular weight 182.13 g/mol, is a CATO reference standard with documented purity and traceability.
6-Formyl-2,3-dihydroxybenzoic acid (C8H6O5) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
CATO manufactures 6-Formyl-2,3-dihydroxybenzoic acid 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 | C8H6O5 |
| Molecular Weight | 182.13 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
Related Formyl Standards
- 3-Formyl-4,5-dihydroxybenzoic acid (CAS 127898-52-6)
- 2-Formyl-3,4-dihydroxybenzoic acid (CAS 82177-66-0)
- 5-Formyl-2,4-dihydroxybenzoic acid (CAS 873974-93-7)
- Ethyl 2-formyl-4-methylfuran-3-carboxylate (CAS 1380521-16-3)
- Ethyl 5-formyl-2-methylfuran-3-carboxylate (CAS 19615-48-6)
- Methyl 3-(4-formyl-1H-pyrazol-1-yl)propanoate (CAS 1215295-99-0)
- 2-(4-Formyl-1h-pyrazol-1-yl)ethyl acetate (CAS 1315367-26-0)
- Ethyl 3-formyl-1-methyl-1H-pyrazole-5-carboxylate (CAS 1318758-42-7)
Recommended Standards
- 6,7-Dihydro-[1,4]dioxino[2,3-d]pyrimidine-2-carboxylic acid (CAS 946505-97-1)
- 6-Hydroxybenzo[d][1,3]dioxole-5-carboxylic Acid (CAS 4890-01-1)
- 6,7-Difluoroquinazolin-4(3H)-one (CAS 205259-37-6)
- 6-methoxy-3-nitropyridine-2-carbaldehyde (CAS 871583-87-8)
- Dihydroartemisinin O-β-D-glucuronide (CAS 198976-06-6)
- 1-Amino-2-methylheptan-3-ol (CAS 1495294-99-9)
- N-b-hydroxyethyloleylimidazoline (CAS 95-38-5)
- Teneligliptin Impurity 41 (CAS 401564-30-5)
- Aldicarb-(<I>N</I>-<I>methyl</I>-<SUP>13</SUP>C,d<SUB>3</SUB> <I>Carbamoyl< /I>-<SUP>13</SUP>C) (CAS 1261170-75-5)
- 2-Amino-7,8,9,10-tetrahydroazepino[2,1-b]quinazolin-12(6H)-one (CAS 61938-75-8)
- n-Allyl-2-(3-fluorophenoxy)acetamide (CAS 1090561-25-3)
- 3-Bromo-N-(pyridin-4-ylmethyl)aniline (CAS 423178-59-0)
- 1,1-dideuterio-1-deuteriooxy-ethane (CAS 22544-42-9)
- endo-Ser39-Tirzepatide (CAS CATO-CPTD788935)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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