Phenylhydrazine oxalate CAS 37887-33-5
| CAS No. | 37887-33-5 |
| Molecular Formula | C6H8N2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 198.18 g/mol gives Phenylhydrazine oxalate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Phenylhydrazine oxalate (CAS 37887-33-5), a certified reference material (molecular formula C6H8N2C2H2O4, MW 198.18 g/mol) for analytical method development and quality control.
Phenylhydrazine oxalate (C6H8N2C2H2O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; 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).
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), Phenylhydrazine oxalate 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 | C6H8N2 C2H2O4 |
| Molecular Weight | 198.18 g/mol |
| Appearance | Off-white to pale 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 methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 2 |
Related Phenylhydrazine Standards
- 1-Acetyl-2-phenylhydrazine (CAS 114-83-0)
- 1-Benzyl-2-phenylhydrazine (CAS 15806-20-9)
- 2-Methyl-2-phenylhydrazine-1-carbothioamide (CAS 21076-05-1)
- 1-Acetyl-1-phenylhydrazine (CAS 2116-41-8)
- Phenylhydrazine hydrochloride (CAS 27140-08-5)
- 1-Methyl-1-phenylhydrazine xsulfate (CAS 33008-18-3)
- 1-Methyl-1-phenylhydrazine hydrochloride (CAS 39232-92-3)
- 6-(2-Phenylhydrazine-1-carbonyl)cyclohex-3-ene-1-carboxylic acid (CAS 477889-12-6)
Recommended Standards
- Ethyl N-[(2E)-2-[2-(3-methoxyphenyl)hydrazin-1-ylidene]-3-oxobutanoyl]carbamate (CAS 338400-93-4)
- Rel-(9R,10S,11S,12R)-9,10-dihydro-9,10-ethanoanthracene-11,12-diol (CAS 2732-95-8)
- N-Cyclohexyl-2-fluorobenzamide (CAS 2267-95-0)
- [4-(Phenylamino)piperidin-4-yl]methanol (CAS 113231-29-1)
- (S)-N-Boc-L-homoserine ethyl ester (CAS 147325-09-5)
- 2-(Hydroxymethyl)-5-nitrothiophene (CAS 20898-85-5)
- 1-(3,4-Difluorophenyl)-5-(4-methoxyphenyl)-1H-tetrazole (CAS 339108-71-3)
- 5-(4-Ethylphenyl)-1H-pyrazole-3-carboxylic acid (CAS 1197631-25-6)
- 2-(Pyrimidin-5-yl)ethanamine hydrochloride (CAS 1159824-15-3)
- C-Type Natriuretic Peptide (32-53) (human, porcine, rat) (CAS 127869-51-6)
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