5-(Ethylthio)-1,3,4-oxadiazole-2-carbonyl chloride CAS 62373-37-9
| CAS No. | 62373-37-9 |
| Molecular Formula | C5H5ClN2O2S |
| Molecular Weight | 192.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-(Ethylthio)-1,3,4-oxadiazole-2-carbonyl chloride (CAS 62373-37-9) is a high-purity analytical reference standard with the molecular formula C5H5ClN2O2S and a molecular weight of 192.62 g/mol.
5-(Ethylthio)-1,3,4-oxadiazole-2-carbonyl chloride (C5H5ClN2O2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; 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.
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 | C5H5ClN2O2S |
| Molecular Weight | 192.62 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1974 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Ethylthio Standards
- 3-[(4-Ethylthio)phenyl]-2-methyl-1-propene (CAS 951890-66-7)
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- 2-((Ethylthio)methyl)-1H-benzo[d]imidazole (CAS 99069-37-1)
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Recommended Standards
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- 5-Chloro-3-methoxythiophene-2-carboxylic acid (CAS 62910-69-4)
- Ethyl 2-hydroxy-4-methoxy-6-methylbenzoate (CAS 6110-36-7)
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- 1,3-Dibromo-5-chloro-2-ethoxybenzene (CAS 861338-04-7)
- 5-Amino-1-(4-methyl-1,4-oxazepan-6-yl)-1H-1,2,3-triazole-4-carboxamide (CAS 1353504-76-3)
- 2-(4-Bromophenyl)-2-(isobutyryloxy)acetic Acid (CAS 1385694-70-1)
- 7-(Aminomethyl)-1H-pyrido[2,3-b][1,4]oxazin-2(3H)-one (CAS 1029476-59-2)
- 2',3'-Dihydro-1'H-spiro[cyclopropane-1,4'-isoquinoline]-7'-carbonitrile (CAS 1203686-91-2)
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- 2-((1R,3r)-3-fluorocyclobutyl)-1H-imidazole (CAS 2227198-36-7)
- TRAF6 Control Peptide trifluoroacetate salt (CAS 852690-80-3)
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