4-Chloro-[1,2,5]thiadiazolo[3,4-c]pyridine CAS 26271-17-0
| CAS No. | 26271-17-0 |
| Molecular Formula | C5H2ClN3S |
| Molecular Weight | 171.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 171.61 g/mol gives 4-Chloro-[1,2,5]thiadiazolo[3,4-c]pyridine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 4-Chloro-[1,2,5]thiadiazolo[3,4-c]pyridine (CAS 26271-17-0), a certified reference material (molecular formula C5H2ClN3S, MW 171.61 g/mol) for analytical method development and quality control.
Owing to a nitrile group, sulfur-containing functionality, chlorine substitution, 4-Chloro-[1,2,5]thiadiazolo[3,4-c]pyridine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 171.61 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-Chloro-[1,2,5]thiadiazolo[3,4-c]pyridine 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 | C5H2ClN3S |
| Molecular Weight | 171.61 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 2-Chloro-3-isothiocyanatopyrazine (CAS 127648-53-7)
- 5-Chloro-[1,3]thiazolo[5,4-d]pyrimidine (CAS 13316-08-0)
- (3-Chloro-2-methoxyphenyl)methanamine (CAS 1044256-97-4)
- [3-chloro-5-(methylamino)phenyl]methanol (CAS 1051900-94-7)
- 4-Chloro-2,3,5-trimethylpyridine-1-oxide (CAS 109371-20-2)
- 1-(6-Chloro-2-methylpyridin-3-yl)ethan-1-ol (CAS 1093880-33-1)
- 4-Chloro-3-(methoxymethyl)aniline (CAS 1094675-66-7)
- 5-Chloro-2-ethoxy-3-methylpyridine (CAS 1095544-93-6)
Recommended Standards
- 5-Chlorothiazolo[4,5-d]pyrimidine (CAS 1535441-43-0)
- 2-(2-Amino-6-chlorophenyl)ethanol (CAS 100376-53-2)
- 4-Chloroisothiazolo[5,4-d]pyrimidine (CAS 1483065-60-6)
- 2-(Chloromethyl)-6-methoxy-4-methylpyridine (CAS 100636-47-3)
- Niobium N-Butoxide (CAS 51030-47-8)
- 7-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-4,5-dihydro-1H-benzo[b]azepin-2(3H)-one (CAS 1312005-59-6)
- 3-{[(2,4-dichlorophenyl)methyl]sulfanyl}-5-[(E)-2-(phenylamino)ethenyl]-1,2-thiazole-4-carbonitrile 338778-71-5 6C-070 (CAS 338778-71-5)
- 3-(Pyrrolidin-3-yl)thieno[3,2-d]pyrimidine-2,4(1H,3H)-dione (CAS 1708427-94-4)
- N-((5-((2-((4-Fluorophenyl)amino)-2-oxoethyl)thio)-4-(3-(trifluoromethyl)phenyl)-4H-1,2,4-triazol-3-yl)methyl)benzamide (CAS 393839-83-3)
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