BISPYRAZOLONE
Synonym(s):3,3′-Dimethyl-1,1′-diphenyl-(4,4′-bi-2-pyrazoline)-5,5′-dione
- CAS NO.：7477-67-0
- Empirical Formula: C20H18N4O2
- Molecular Weight: 346.38
- MDL number: MFCD00020765
- EINECS: 231-282-5
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-12-07 19:09:50
What is BISPYRAZOLONE?
Chemical properties
off-white to cream-yellowish crystalline powder
The Uses of BISPYRAZOLONE
Bispyrazolone is an impurity of Edaravone (E335000).
The Uses of BISPYRAZOLONE
It is applied as a reagent for the detection and determination of cyanide. It is also used in an experimental procedure, done in order to remove linamarin in starch from cassava roots, by using plant cell wall-degrading enzymes, xylanase and cellulase. It was also used for spectrophotometric determination and quantization of urea in urine samples. It is also used in assay of cyanogenic compounds and determination of ammonia.
Properties of BISPYRAZOLONE
| Melting point: | 355 °C |
| Boiling point: | 481.12°C (rough estimate) |
| Density | 1.31 |
| refractive index | 1.6620 (estimate) |
| storage temp. | Refrigerator |
| solubility | formic acid: 50 mg/mL, clear, yellow |
| form | crystalline |
| pka | 2.15±0.70(Predicted) |
| color | tan |
| BRN | 572787 |
| CAS DataBase Reference | 7477-67-0(CAS DataBase Reference) |
| EPA Substance Registry System | [4,4'-Bi-3H-pyrazole]-3,3'-dione, 2,2',4,4'-tetrahydro-5,5'-dimethyl-2,2'-diphenyl- (7477-67-0) |
Safety information for BISPYRAZOLONE
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H317:Sensitisation, Skin |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P272:Contaminated work clothing should not be allowed out of the workplace. P280:Wear protective gloves/protective clothing/eye protection/face protection. P321:Specific treatment (see … on this label). P333+P313:IF SKIN irritation or rash occurs: Get medical advice/attention. P501:Dispose of contents/container to..… |
Computed Descriptors for BISPYRAZOLONE
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