Oxazolo[4,5-c]pyridine-2-thiol CAS 120640-76-8
| CAS No. | 120640-76-8 |
| Molecular Formula | C6H4N2OS |
| Molecular Weight | 152.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Oxazolo[4,5-c]pyridine-2-thiol (C6H4N2OS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
CATO supplies Oxazolo[4,5-c]pyridine-2-thiol (CAS 120640-76-8), a certified reference material (molecular formula C6H4N2OS, MW 152.17 g/mol) for analytical method development and quality control.
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.
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 | C6H4N2OS |
| Molecular Weight | 152.17 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Oxazolo Standards
- Oxazolo[5,4-b]pyridine-2(1H)-thione (CAS 169205-99-6)
- Oxazolo[4,5-b]pyridine-2(3H)-thione (CAS 53052-06-5)
- Oxazolo[4,5-b]pyridine-2-thiol (CAS 211949-57-4)
- 1H-Oxazolo[3,4-a]pyridine-1,5(3H)-dione (CAS 61327-56-8)
- 2-Methyl[1,3]oxazolo[5,4-d]pyrimidin-7-ol 2-methyloxazolo[5,4-d]pyrimidin-7-ol 27433-55-2 NSC133683 (CAS 27433-55-2)
- Oxazolo[5,4-d]pyrimidine-2-methanamine (CAS 1543085-58-0)
- 3-Methyl-[1,2]oxazolo[5,4-d]pyrimidin-4-amine (CAS 89799-07-5)
- 3-Methyl-[1,2]oxazolo[5,4-b]pyridin-5-amine (CAS 1018144-08-5)
Recommended Standards
- 1-Cyclopropoxy-4-fluorobenzene (CAS 1205501-33-2)
- Thiazolo[4,5-c]pyridin-4(5H)-one (CAS 1208988-80-0)
- 6-Fluoroindolin-1-amine (CAS 120212-25-1)
- 7-Fluoro-1,2,3,4-tetrahydro-1,5-naphthyridine (CAS 1211527-95-5)
- 2-(5-Fluoro-2-methyl-1H-indol-3-yl)-ethylamine hydrochloride (CAS 1079-45-4)
- (R)-3,3,3-Trifluoro-1-phenyl-2-propylamine hydrochloride (CAS 189350-65-0)
- 1-bromo-4-methoxy-2-methylbenzene 1-bromo-4-methoxy-2-methylbenzene; 2-bromo-5-methoxytoluene; 2-methyl-4-methoxybromobenzene; 27060-75-9 4-bromo-1-methoxy-3-methylbenzene; 4-bromo-3-methylanisole; 4-methoxy-2-methyl-bromobenzene 4-methoxy-2-methylphenyl bromide; EBD321061 (CAS 27060-75-9)
- 4-Iodoisoxazolo[5,4-b]pyridin-3-amine (CAS 1252989-39-1)
- Sulfadimethoxine EP Impurity F (CAS 19868-00-9)
- 3-((2-Hydroxyphenyl)amino)-1,2,4-triazin-5(2H)-one (CAS 857492-03-6)
- 2-Fluoro-3-iodo-4-methylpyridine (CAS 1214323-08-6)
- 2-(2-((4-Bromophenyl)amino)-2-oxoethoxy)-N-(2-(methyl(phenyl)amino)-2-oxoethyl)benzamide (CAS 1462267-08-8)
- 1-{(2'R,3'R)-4'-[(4-Chloro-1,1,2,2,3,3,4,4-octafluorobutyl)sulfonyl]-5'-methyl-2',3'-dihydro-2,3'-bifuran-2'-yl}ethanone (CAS 771491-82-8)
- Acetyl decapeptide-3 (CAS 935288-50-9)
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