ChemicalBook > CAS DataBase List > 4,5-DICHLORO-3,6-PYRIDAZINEDIOL

4,5-DICHLORO-3,6-PYRIDAZINEDIOL

Product Name
4,5-DICHLORO-3,6-PYRIDAZINEDIOL
CAS No.
6641-32-3
Chemical Name
4,5-DICHLORO-3,6-PYRIDAZINEDIOL
Synonyms
4,5-DICHLORO-3,6-PYRIDAZINEDIOL;4,5-DICHLOROPYRIDAZINE-3,6-DIOL;4,5-Dichlor-3,6-dihydroxy-pyridazin;3(2H)-Pyridazinone, 4,5-dichloro-6-hydroxy-;4,5-dichloro-1,2-dihydropyridazine-3,6-dione
CBNumber
CB2288820
Molecular Formula
C4H2Cl2N2O2
Formula Weight
180.98
MOL File
6641-32-3.mol
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4,5-DICHLORO-3,6-PYRIDAZINEDIOL Property

Melting point:
295
storage temp. 
under inert gas (nitrogen or Argon) at 2-8°C
Appearance
White to off-white Solid
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Safety

HS Code 
2933998090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

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

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Matrix Scientific
Product number
096986
Product name
4,5-Dichloropyridazine-3,6-diol
Purity
95+%
Packaging
250mg
Price
$651
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
HCH0022583
Product name
4,5-DICHLOROPYRIDAZINE-3,6-DIOL
Purity
95.00%
Packaging
1G
Price
$1258.83
Updated
2021/12/16
Matrix Scientific
Product number
096986
Product name
4,5-Dichloropyridazine-3,6-diol
Purity
95+%
Packaging
1g
Price
$1445
Updated
2021/12/16
Ambeed
Product number
A258592
Product name
4,5-Dichloropyridazine-3,6-diol
Purity
97%
Packaging
1g
Price
$22
Updated
2021/12/16
Ambeed
Product number
A258592
Product name
4,5-Dichloropyridazine-3,6-diol
Purity
97%
Packaging
5g
Price
$77
Updated
2021/12/16
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4,5-DICHLORO-3,6-PYRIDAZINEDIOL Chemical Properties,Usage,Production

Synthesis

1122-17-4

6641-32-3

General procedure for the synthesis of 4,5-dichloropyridazine-3,6-diol from 2,3-dichloromaleic anhydride: water (170 mL) and hydrazine dihydrochloride salt (41.9 g, 398.8 mmol) were added to a round bottom flask. The solution was heated to reflux followed by the addition of 2,3-dichloromaleic anhydride (66.6 g, 398.9 mmol) in batches. The reflux condition was maintained and the reaction mixture was stirred continuously for 30 minutes. Upon completion of the reaction, the solution was cooled to room temperature and the precipitated solid was collected by filtration to afford the target product 4,5-dichloropyridazine-3,6-diol (i.e., 4,5-dichloro-1,2-dihydropyridazine-3,6-dione, 65 g, 90% yield) as a white solid. Mass spectral analysis showed (M + H)+ = 181.0.

References

[1] Patent: US2006/287323, 2006, A1. Location in patent: Page/Page column 7
[2] Zhurnal Obshchei Khimii, 1954, vol. 24, p. 1216,1219; engl. Ausg. S. 1205, 1206

4,5-DICHLORO-3,6-PYRIDAZINEDIOL Preparation Products And Raw materials

Raw materials

Preparation Products

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4,5-DICHLORO-3,6-PYRIDAZINEDIOL Suppliers

China 27 India 1 The Netherlands 1 United Kingdom 3 United States 4 Global 36
Specs
Tel
--
Fax
--
Email
info@specs.net
Country
The Netherlands
ProdList
6833
Advantage
70
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View Lastest Price from 4,5-DICHLORO-3,6-PYRIDAZINEDIOL manufacturers

Shanghai Rlavie Technology Co ltd
Product
4,5-Dichlor-3,6-dihydroxy-pyridazin 6641-32-3
Price
US $0.00-0.00/KG
Min. Order
1g
Purity
98%minHPLC
Supply Ability
50kgs/month
Release date
2021-11-13

6641-32-3, 4,5-DICHLORO-3,6-PYRIDAZINEDIOLRelated Search:

4,5-Dichloro-3(2H)-pyridazinone 5-CHLOROPYRIDAZIN-3-OL Maleic hydrazide 4-CHLOROPYRIDAZINE 3,6-DIHYDROXY-4-CHLOROPYRIDAZINE 4,5-DICHLORO-3,6-PYRIDAZINEDIOL

  • 4,5-DICHLOROPYRIDAZINE-3,6-DIOL
  • 4,5-DICHLORO-3,6-PYRIDAZINEDIOL
  • 4,5-Dichlor-3,6-dihydroxy-pyridazin
  • 3(2H)-Pyridazinone, 4,5-dichloro-6-hydroxy-
  • 4,5-dichloro-1,2-dihydropyridazine-3,6-dione
  • 6641-32-3
  • C4H2Cl2N2O2