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BISPYRAZOLONE

Product Name
BISPYRAZOLONE
CAS No.
7477-67-0
Chemical Name
BISPYRAZOLONE
Synonyms
NSC 37393;NSC 401001;BISPYRAZOLONE;edaravone diMer;Bispyrazolone, GR;Bispyrazolone, 98+%;Edaravone impurity Ⅰ;Edaravone IMpurity IV;LABOTEST-BB LT00008461;Edaravone DiMer IMpurity
CBNumber
CB0360601
Molecular Formula
C20H18N4O2
Formula Weight
346.38
MOL File
7477-67-0.mol
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BISPYRAZOLONE Property

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
pka
2.15±0.70(Predicted)
form 
crystalline
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)
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Safety

Hazard Codes 
Xi
Risk Statements 
43
Safety Statements 
36/37
WGK Germany 
3
TSCA 
Yes
HS Code 
29331990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H317May cause an allergic skin reaction

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P272Contaminated work clothing should not be allowed out of the workplace.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P321Specific treatment (see … on this label).

P333+P313IF SKIN irritation or rash occurs: Get medical advice/attention.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
15156
Product name
Bispyrazolone
Purity
for TLC derivatization, for the det.of cyanide, ≥98.0%
Packaging
5g
Price
$50.8
Updated
2024/03/01
TCI Chemical
Product number
B0508
Product name
Bis(3-methyl-1-phenyl-5-pyrazolone) [for Determination of CN, Vitamin B12, etc]
Purity
>97.0%(T)
Packaging
25g
Price
$114
Updated
2024/03/01
TCI Chemical
Product number
B0508
Product name
Bis(3-methyl-1-phenyl-5-pyrazolone) [for Determination of CN, Vitamin B12, etc]
Purity
>97.0%(T)
Packaging
250g
Price
$633
Updated
2024/03/01
Alfa Aesar
Product number
A14308
Product name
Bispyrazolone, 98+%
Packaging
5g
Price
$42.2
Updated
2024/03/01
Alfa Aesar
Product number
A14308
Product name
Bispyrazolone, 98+%
Packaging
25g
Price
$136
Updated
2024/03/01
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BISPYRAZOLONE Chemical Properties,Usage,Production

Chemical Properties

off-white to cream-yellowish crystalline powder

Uses

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.

Uses

Bispyrazolone is an impurity of Edaravone (E335000).

BISPYRAZOLONE Preparation Products And Raw materials

Raw materials

Ethyl acetoacetate N-Bromosuccinimide Sodium acetate trihydrate Acetic acid Phenylhydrazine

Preparation Products

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BISPYRAZOLONE Suppliers

Americas 1 Canada 1 China 117 Europe 3 Germany 4 India 11 Japan 5 Slovakia 1 Switzerland 1 United Kingdom 7 United States 21 Global 172
SIGMA-RBI
Tel
--
Fax
--
Country
Switzerland
ProdList
6896
Advantage
91
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View Lastest Price from BISPYRAZOLONE manufacturers

hebei hongtan Biotechnology Co., Ltd
Product
BISPYRAZOLONE 7477-67-0
Price
US $30.00/kg
Min. Order
1kg
Purity
98%
Supply Ability
2000kg
Release date
2024-03-25
Hebei Weibang Biotechnology Co., Ltd
Product
BISPYRAZOLONE 7477-67-0
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2024-10-29
Hebei Yanxi Chemical Co., Ltd.
Product
BISPYRAZOLONE 7477-67-0
Price
US $100.00/KG
Min. Order
1KG
Purity
0.99
Supply Ability
500kg per day
Release date
2023-09-04

7477-67-0, BISPYRAZOLONERelated Search:

1,2-Dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one 1H-Pyrazole, 5-methoxy-3-methyl-1-phenyl- Acetyl ketene Edaravone Impurity 14 Edaravone Impurity 26 Edaravone Impurity 5 Edaravone Impurity 8 ethyl 3-acetoxy-2-butenoate Edaravone Impurity 15 Edaravone Impurity 19 1H-Pyrazole,3-ethoxy-5-methyl-1-phenyl-(9CI) Edaravone Impurity 6 NSC4751 Edaravone 5-Oxo-1-phenyl-2-pyrazolin-3-carboxylic acid benzenediazonium chloride 4,5-Dihydro-α,3-diMethyl-5-oxo-1-phenyl-α-sulfo-1H-pyrazole-4-acetic Acid Edaravone Impurity 11

  • BIS(3-METHYL-1-PHENYL-5-PYRAZOLONE)
  • BIS(1-PHENYL-3-METHYL-5-PYRAZOLONE)
  • BISPYRAZOLONE
  • LABOTEST-BB LT00008461
  • 4,4'-BIS(3-METHYL-1-PHENYL-5-PYRAZOLONE)
  • 4,4'-BIS(1-PHENYL-3-METHYL-5-PYRAZOLONE)
  • 3,3-DIMETHYL-1,1-DIPHENYL-(4,4-BI-2-PYRAZOLINE)-5,5-DIONE
  • 3,3'-DIMETHYL-1,1'-DIPHENYL-[4,4'-BI-2-PYRAZOLINE]-5,5'-DIONE
  • 3,3'-DIMETHYL-1,1'-DIPHENYL-4,4'-BI(5-PYRAZOLONE)
  • 3,3'-DIMETHYL-1,1'-DIPHENYL-[4,4'-BIS-2-PYRAZOLINE]-5,5'-DIONE
  • 3,3'-DIMETHYL-1,1'-DIPHENYL-4,4'-DI-2-PYRAZOLINE-5,5'-DIONE
  • [4,4’-bi-3h-pyrazole]-3,3’-dione,2,2’,4,4’-tetrahydro-5,5’-dimethyl-2,2’-diphe
  • Edaravone Impurity 16 (Bis-pyrazolone)
  • 4,4'-Bis(1-phenyl-3-methyl-5-pyrazolone/3,3'-Dimethyl-1,1'-diphenyl[4,4'-bi-1H-pyrazole]
  • Edaravone Impurity Ⅰ:2,2',4,4'-Tetrahydro-5,5'-dimethyl-2,2'-diphenyl-[4,4'-Bi-3H-pyrazole]-3,3'-dione
  • [4,4’-bi-3H-Pyrazole]-3,3’-dione,2,2’,4,4’-tetrahydro-5,5’-dimethyl-2,2’-diphenyl-
  • 4’-bi-3H-Pyrazole]-3,3’-dione,2,2’,4,4’-tetrahydro-5,5’-dimethyl-2,2’-diphenyl-[4
  • Bis(1-phenyl-3-methyl-5-pyrazo
  • BISPYRAZOLONE, FOR THE DETECTION OF CYAN IDE
  • 4,4'-BIS(3-METHYL-1-PHENYL-5-PYRAZOLONE)[FOR DETERMINATION OF CN, VITAMIN B12, ETC] 97+%
  • BISPYRAZOLONE(4,4''-BIS-(3-METHYL-1-PHENYL-5-PYRAZOLONE))
  • 2,2',4,4'-tetrahydro-5,5'-dimethyl-2,2'-diphenyl-[4,4'-bi-3H-Pyrazole]-3,3'-dione
  • 3,3-DIMETHYL-1,1''-DIPHENYL[4,4''-BI-2-PYRAZOLINE]-5,5''-DIONE 98%
  • 3,3'-Dimethyl-1,1'-diphenyl-4,4'-bi(2-pyrazolin-5-one)
  • 3,3'-Dimethyl-1,1'-diphenyl[4,4'-bi-2-pyrazoline]-5,5'-dione,98%
  • Bispyrazolone,3,3′-Dimethyl-1,1′-diphenyl-(4,4′-bi-2-pyrazoline)-5,5′-dione
  • Bispyrazolone, 98+%
  • Bis(3-Methyl-1-phenylpyrazol-5-one)
  • NSC 37393
  • NSC 401001
  • Bispyrazolone 3,3'-Dimethyl-1,1'-diphenyl-4,4'-bi(5-pyrazolone)
  • [for DeterMination of CN, VitaMin B12, etc]
  • Bis(3-Methyl-1-phenyl-5-pyrazolone)&nbsp
  • edaravone diMer
  • edaravone related substance A
  • Edaravone DiMer IMpurity
  • 3,3'-diMethyl-1,1'-diphenyl-1H,1'H-[4,4'-bipyrazole]-5,5'(4H,4'H)-dione
  • 4,4'-Bis(3-Methyl-1-phenyl-5-pyrazolone), for analysis
  • Edaravone IMpurity IV
  • Bis(3-methyl-1-phenyl-5-pyrazolone) [for Determination of CN, Vitamin B12, etc]
  • 3,3'-Dimethyl-1,1'-diphenyl[4,4'-bi-2-pyrazoline]-5,5'-dione Bis-pyrazolone Bis(3-methyl-1-phenyl-5-pyrazolone)
  • 4,4'-Bis(3-methyl-1-phenyl-5-pyrazolone), 97%, for analysis
  • Edaravone Impurity IV (Bispyrazolone)
  • Bis(3-methyl-1-phenyl-5-pyrazolone)[forDeterminationofCN,VitaminB12,etc]&gt
  • Bispyrazolone, GR
  • Edaravone Impurity Ⅰ:2,2’,4,4’-Tetrahydro-5,5’-dimethyl-2,2’-diphenyl-[4,4’-Bi-3H-pyrazole]-3,3’-dione
  • 5-methyl-4-(3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-yl)-2-phenyl-4H-pyrazol-3-one
  • Bispyrazolone, Technical, Fisher Chemical
  • Bis(3-methyl-1-phenyl-5-pyrazolone), for Determination of CN, Vitamin B12, etc，≥ 97.0%
  • 3,3’-Dimethyl-1,1’-diphenyl-[4,4’-bi-2-pyrazoline]-5,5’-dione
  • 4,4’-Bis(1-phenyl-3-methyl-5-pyrazolone/3,3’-Dimethyl-1,1’-diphenyl[4,4’-bi-1H-pyrazole
  • Edaravone Impurity Ⅰ:2,2’,4,4’-Tetrahydro-5,5’-dimethyl-2,2’-diphenyl-[4,4’-Bi-3H-pyrazole]-3,3’-dione
  • 3,3'-Dimethyl-1,1'-diphenyl-1H,1'H-[4,4'-bipyrazole]-5,5'(4H,4'H)-dione (Edaravone Impurity)
  • Edaravone impurity Ⅰ
  • 7477-67-0
  • 84006-10-3
  • C20H18N4O2
  • CH3CNNC6H5COCH2