5-Chloropyridine-3,4-diol CAS 891785-87-8
| CAS No. | 891785-87-8 |
| Molecular Formula | C6H6ClNO |
| Molecular Weight | 143.57 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.
5-Chloropyridine-3,4-diol (CAS 891785-87-8) is a high-purity analytical reference standard with the molecular formula C6H6ClNO and a molecular weight of 143.57 g/mol.
5-Chloropyridine-3,4-diol (C6H6ClNO) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C6H6ClNO |
| Molecular Weight | 143.57 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloropyridine Standards
- 2-Chloropyridine-4-methanol (CAS 100704-10-7)
- 6-Chloropyridine-2,4-diamine (CAS 1206248-43-2)
- 4-Chloropyridine-3,5-diamine (CAS 1221716-06-8)
- 3-Chloropyridine-2,4-diamine (CAS 1232431-15-0)
- 2-Chloropyridine-3,5-diamine (CAS 5632-81-5)
- 3-Chloropyridine-2,5-diamine (CAS 813425-48-8)
- 3-Chloropyridine-4-methanol (CAS 79698-53-6)
- 3-Chloropyridine-2,4-diol (CAS 103792-81-0)
Recommended Standards
- 5-chloro-N-methylpyrimidin-2-amine (CAS 45715-16-0)
- 6-Chloro-4-methylpyridin-2-ol (CAS 25297-47-6)
- 5-Chloro-6-methylpyridin-3-ol (CAS 51984-63-5)
- 6-Chloro-N-methylpyrazin-2-amine (CAS 848366-38-1)
- 5-tert-butylazepan-2-one (CAS 32741-89-2)
- 4-Cyano-4-(3-chlorophenyl)cyclohexanone (CAS 1037197-39-9)
- 2-Chloro-1-(3-chloro-5-fluoropyridin-2-yl)ethan-1-one (CAS 1374652-07-9)
- 2-[2-(Dicyclohexylamino)ethoxy]ethanol (CAS 175974-43-3)
- 1-(1,4-Diazepan-1-yl)-2,2,2-trifluoroethan-1-one (CAS 1177329-26-8)
- Fmoc-(R)-1,2,3,4-Tetrahydro-isoquinoline-3-aceticacid (CAS 332064-67-2)
- 2-Chloro-3-(pyridin-4-yl)-5-(trifluoromethyl)pyridine (CAS 1214366-98-9)
- 5-Methoxy-N-isopropyl Tryptamine-d4 (CAS 1346599-19-6)
- Methyl 4-(cyclopropylcarbamoyl)benzoate (CAS 880166-77-8)
- (Gly1,Ser3·22,Gln?·3?,Thr?,Arg1?,Tyr21,Ala23·31,Aib32)-Pancreatic Polypeptide (human) (CAS 313988-89-5)
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