3,5-Dichloropyridine-4-thiol CAS 33216-53-4
| CAS No. | 33216-53-4 |
| Molecular Formula | C5H3Cl2NS |
| Molecular Weight | 180.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 3,5-Dichloropyridine-4-thiol (CAS 33216-53-4), a certified reference material (molecular formula C5H3Cl2NS, MW 180.06 g/mol) for analytical method development and quality control.
3,5-Dichloropyridine-4-thiol (C5H3Cl2NS) contains a nitrile group, sulfur-containing functionality, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 3,5-Dichloropyridine-4-thiol meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C5H3Cl2NS |
| Molecular Weight | 180.06 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 |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Dichloropyridine Standards
- 2,3-Dichloropyridine-4-thiol (CAS 1803809-56-4)
- 2,6-Dichloropyridine-3-thiol (CAS 1806270-53-0)
- 2,6-Dichloropyridine-4-thiol (CAS 33256-13-2)
- 3,5-Dichloropyridine-2-thiol (CAS 41957-20-4)
- 3,5-Dichloropyridine-2,4-diol (CAS 103792-80-9)
- 4,5-dichloropyridine-3-carbaldehyde (CAS 1009334-04-6)
- 4,6-dichloropyridine-2-carbaldehyde (CAS 132683-62-6)
- 3,5-Dichloropyridine-4-carboxaldehyde (CAS 136590-83-5)
Recommended Standards
- 527-21-9 Fluoranil p-Benzoquinone, 2,3,5,6-tetrafluoro- (8CI) 2,5-Cyclohexadiene-1,4-dione, 2,3,5,6-tetrafluoro- (9CI) Tetrafluoro-p-benzoquinone EINECS 208-411-9 p-Fluoranil Fluoroanil NSC 264881 Tetrafluoro-1,4-benzoquinone Tetrafluoroquinone (CAS 527-21-9)
- 7,7-Dichloro-6-methyl-3-azabicyclo[4.1.0]Heptane (CAS 1804129-11-0)
- 1,3-Selenazolidine-4-carboxylic acid (CAS 63578-00-7)
- 2-Pentafluoroethyloxy-ethanol (CAS 91324-95-7)
- 5,6-Dihydrodicyclopentadiene (CAS 4488-57-7)
- (R)-6,7-Dihydro-5H-pyrrolo[1,2-a]imidazol-7-ol (CAS 1221187-73-0)
- 4-Methoxy-3,5-dimethylbenzamide (CAS 1429903-69-4)
- (11aR)-10,11,12,13-Tetrahydro-5-hydroxy-5-oxide-diindeno[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin (CAS 1352810-35-5)
- 6-Phenyl-1,3,5-triazine-2,4(1H,3H)-dione, 97% (CAS 7459-63-4)
- 2-(3-Acetamido-4-methoxyphenoxy)acetic acid (CAS 1239737-58-6)
- (S)-2-Amino-3-(3,5-difluoro-4-hydroxyphenyl)propanoic acid hydrochloride (CAS 2089388-67-8)
- Benzyl 1,2-oxazepane-2-carboxylate (CAS 1217295-83-4)
- 1-(5-Methylpyrimidin-4-yl)piperidin-3-ol (CAS 1206970-05-9)
- TRAF6 Control Peptide trifluoroacetate salt (CAS 852690-80-3)
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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