3,5-Dioxopyrazolidine-4-carbohydrazide CAS 85791-90-8
| CAS No. | 85791-90-8 |
| Molecular Formula | C4H6N4O3 |
| Molecular Weight | 158.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,5-Dioxopyrazolidine-4-carbohydrazide (CAS 85791-90-8) is a high-purity analytical reference standard with the molecular formula C4H6N4O3 and a molecular weight of 158.12 g/mol.
Structurally, 3,5-Dioxopyrazolidine-4-carbohydrazide (C4H6N4O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 158.12 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C4H6N4O3 |
| Molecular Weight | 158.12 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, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1981 |
| Nitrogen Atoms | 4 |
Related Dioxopyrazolidine Standards
Recommended Standards
- 3-(2,2,2-trifluoroethoxy)propan-1-ol (CAS 215929-99-0)
- 4,6-Dioxo-1,3,5-triazinane-2-carboxamide (CAS 89281-55-0)
- 2-(Trifluoromethyl)butane-1,2-diol (CAS 2143510-29-4)
- Allantoin (CAS 97-59-6)
- n-(Benzo[d]thiazol-2-ylmethyl)benzamide (CAS 117998-90-0)
- N1-cyclopropylpropane-1,2-diamine (CAS 1249081-04-6)
- 2-(2,4,5-Trimethylphenyl)butanoic acid (CAS 1481411-56-6)
- alpha-Naphtholbenzein (CAS 6948-88-5)
- (R)-3-Amino-3-cyclohexylpropanoic acid (CAS 91383-15-2)
- Trans-3,5-diphenyl-4,5-dihydroisoxazole-4-carbaldehyde (CAS 89479-70-9)
- 5-Bromo-1-((5-(2-chlorophenyl)-3-(4-methoxyphenyl)-4,5-dihydro-1H-pyrazol-1-yl)methyl)indoline-2,3-dione (CAS 337932-35-1)
- 4-Cyano-1-(difluoromethoxy)pyridin-1-ium trifluoromethanesulfonate (CAS 2822620-31-3)
- Ethyl 2-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)thio)acetate (CAS 338422-70-1)
- 110207-62-0 Acetyl-Cholecystokinin Octapeptide (2-8) (sulfated) MFCD00133565 (CAS 110207-62-0)
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