6-chlorothieno[2,3-b]pyridin-4-ol CAS 99429-86-4
| CAS No. | 99429-86-4 |
| Molecular Formula | C7H12ClNOS |
| Molecular Weight | 193.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6-chlorothieno[2,3-b]pyridin-4-ol (CAS 99429-86-4), molecular formula C7H12ClNOS and molecular weight 193.69 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 6-chlorothieno[2,3-b]pyridin-4-ol (C7H12ClNOS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 193.69 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C7H12ClNOS |
| Molecular Weight | 193.69 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related chlorothieno Standards
- 4-chlorothieno[2,3-d]pyrimidin-2-amine (CAS 1160994-61-5)
- 2-chlorothieno[2,3-d]pyrimidin-6-amine (CAS 1638761-08-6)
- 7-Chlorothieno[3,2-b]pyridine-3-carbonitrile (CAS 1296224-05-9)
- 3-Chlorothieno[2,3-b]pyridine-2-carbonitrile (CAS 72832-31-6)
- 4-Chlorothieno[2,3-b]pyridine-5-carbonitrile (CAS 63873-61-0)
- 7-Chlorothieno[3,2-b]pyridine-6-carbonitrile (CAS 700844-09-3)
- 6-chlorothieno[3,2-c]pyridin-2-amine (CAS 1638764-29-0)
- 6-chlorothieno[2,3-b]pyridin-2-amine (CAS 1638771-87-5)
Recommended Standards
- 2-chloro-1,3-benzothiazol-4-ol (CAS 71501-29-6)
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- 4-Chlorobiphenyl-2′,3′,4′,5′,6′-d5 (CAS 51624-37-4)
- 4-(Prop-2-yn-1-ylthio)-2-(trifluoromethyl)pyridine (CAS 2408199-31-3)
- ((4-Chlorophenyl)sulfonyl)valine (CAS 250714-80-8)
- 2,4,6-Tribromophenol-1,2,3,4,5,6- (CAS 1097192-97-6)
- 2-[3-(Trifluoromethyl)benzamido]phenylboronic acid (CAS 2304635-75-2)
- 7-Bromo-1H-benzo[d]imidazol-5-ol (CAS 1360891-75-3)
- 1-Oxaspiro[5.5]undecan-9-one (CAS 1067249-24-4)
- 2-(Cyclohexylmethoxy)-1-ethanamine (CAS 200400-14-2)
- trans-3-(iodomethyl)-1,1,4-trimethyl-silolane (CAS 144930-15-4)
- (S)-3-Amino-6-oxo-6-(tritylamino)hexanoic acid (CAS 1956436-61-5)
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