2-(3-(Pyrazin-2-yl)-1,2,4-oxadiazol-5-yl)acetohydrazide CAS 175203-77-7
| CAS No. | 175203-77-7 |
| Molecular Formula | C8H8N6O2 |
| Molecular Weight | 220.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(3-(Pyrazin-2-yl)-1,2,4-oxadiazol-5-yl)acetohydrazide (CAS 175203-77-7), molecular formula C8H8N6O2 and molecular weight 220.19 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 2-(3-(Pyrazin-2-yl)-1,2,4-oxadiazol-5-yl)acetohydrazide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 220.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-(3-(Pyrazin-2-yl)-1,2,4-oxadiazol-5-yl)acetohydrazide 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 | C8H8N6O2 |
| Molecular Weight | 220.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2007 |
| Nitrogen Atoms | 6 |
Related Pyrazin Standards
- Ethyl 3-(pyrazin-2-yl)-1,2,4-oxadiazole-5-carboxylate (CAS 1105190-97-3)
- 3-(3-Pyrazin-2-yl-1,2,4-oxadiazol-5-yl)propanoic acid (CAS 849925-05-9)
- N-(Pyrazin-2-yl)-1-oxa-7-azaspiro[4.4]nonan-3-amine (CAS 1422059-34-4)
- 1-(4-Methyl-2-(pyrazin-2-yl)thiazol-5-yl)ethan-1-one (CAS 260789-23-9)
- Ethyl 3-(pyrazin-2-yl)-1H-1,2,4-triazole-5-carboxylate (CAS 1344335-45-0)
- 2-[2-(pyrazin-2-yl)-1,3-thiazol-4-yl]acetic acid (CAS 256529-20-1)
- 4-Methyl-2-(pyrazin-2-yl)thiazole-5-carboxylic acid (CAS 216959-92-1)
- 4-(Pyrazin-2-ylamino)cyclohexane-1-carboxylic acid (CAS 1183421-63-7)
Recommended Standards
- 3-(3-(Trifluoromethyl)-1H-1,2,4-triazol-1-yl)piperidine (CAS 1707391-91-0)
- 1,1,1-Trifluoro-3-(4-methoxyphenyl)propan-2-ol (CAS 1780584-39-5)
- 3-(Trifluoromethyl)-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepin-9-amine (CAS 1707391-57-8)
- 5-(Piperidin-4-yl)-3-(trifluoromethyl)isoxazole (CAS 1784042-96-1)
- 2-(1-Methylpyrazol-4-yl)cyclopropan-1-amine hydrochloride (CAS 2034157-50-9)
- Oxymorphone hydrochloride (CAS 357-07-3)
- Tert-butyl 2-methyl-4-oxocyclohex-2-ene-1-carboxylate (CAS 35562-24-4)
- Desloratadine Impurity 60 (CAS CATO-C4X-143060)
- 2-(4-Methylcyclohexylidene)propanedinitrile (CAS 184648-01-9)
- 4-(2-Chlorophenyl)-1-methyl-1,2,3,6-tetrahydropyridine (CAS 115900-05-5)
- 5-Benzylisoxazol-3-amine (CAS 1071673-21-6)
- 6'-fluoro-2',3'-dihydro-1'H-spiro[cyclopropane-1,4'-isoquinoline] (CAS 1203685-57-7)
- Chlorfenson (CAS 80-33-1)
- Semaglutide Impurity 129 (CAS 2490269-79-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com