ChemicalBook > CAS DataBase List > 3,4,5,6-TETRACHLOROPYRIDAZINE

3,4,5,6-TETRACHLOROPYRIDAZINE

Product Name
3,4,5,6-TETRACHLOROPYRIDAZINE
CAS No.
20074-67-3
Chemical Name
3,4,5,6-TETRACHLOROPYRIDAZINE
Synonyms
Perchloropyridazine;TETRACHLOROPYRIDAZINE;3,4,5,6-Tetrachlorpyridazin;3,4,5,6-TETRACHLOROPYRIDAZINE;Pyridazine,3,4,5,6-tetrachloro-
CBNumber
CB3197107
Molecular Formula
C4Cl4N2
Formula Weight
217.87
MOL File
20074-67-3.mol
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3,4,5,6-TETRACHLOROPYRIDAZINE Property

Melting point:
87-89
Boiling point:
353.3±37.0 °C(Predicted)
Density 
1.761±0.06 g/cm3(Predicted)
storage temp. 
under inert gas (nitrogen or Argon) at 2-8°C
pka
-4.31±0.10(Predicted)
Appearance
White to yellow Solid
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Safety

HS Code 
2933998090
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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

TRC
Product number
T865255
Product name
3,4,5,6-tetrachloropyridazine
Packaging
100mg
Price
$285
Updated
2021/12/16
SynQuest Laboratories
Product number
3H32-4-03
Product name
Tetrachloropyridazine
Purity
95.0%
Packaging
1g
Price
$151
Updated
2021/12/16
AK Scientific
Product number
0313AB
Product name
Perchloropyridazine
Packaging
5g
Price
$544
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
HCH0014365
Product name
TETRACHLOROPYRIDAZINE
Purity
95.00%
Packaging
1G
Price
$1379.7
Updated
2021/12/16
Ambeed
Product number
A621386
Product name
Perchloropyridazine
Purity
95%
Packaging
250mg
Price
$24
Updated
2021/12/16
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3,4,5,6-TETRACHLOROPYRIDAZINE Chemical Properties,Usage,Production

Synthesis

13645-43-7

20074-67-3

General procedure for the synthesis of 3,4,5,6-tetrachloropyridazine from 3-hydroxy-4,5-dichloro-6-nitropyridazine: a mixture of DMF (14.75 mL, 190 mmol) and POCl3 (17.7 mL, 190 mmol) in anhydrous toluene (150 mL) was stirred for 1 hour at room temperature. Subsequently, 3-hydroxy-4,5-dichloro-6-nitropyridazine (10 g, 48.0 mmol) was added and the reaction mixture was refluxed for 18 hours. After completion of the reaction, the mixture was cooled, poured into ice water and stirred for 30 minutes. The organic phase was separated and the aqueous layer was extracted with EtOAc (4 x 200 mL). The organic layers were combined, dried over MgSO4, filtered and concentrated. The residue was purified by column chromatography (cHexane/EtOAc, 15:1 to 10:1) to afford 3,4,5,6-tetrachloropyridazine as a white solid (6.22 g, 60% yield).HPLC-MS (Method 4): retention time Rt = 4.97 min, [M + H]+ m/z 217-219-221-223.13C NMR (300 MHz, CDCl3) δ 137.48, 154.65.

References

[1] Journal of Heterocyclic Chemistry, 1996, vol. 33, # 6, p. 1915 - 1918
[2] Patent: WO2013/4984, 2013, A1. Location in patent: Page/Page column 71

3,4,5,6-TETRACHLOROPYRIDAZINE Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from 3,4,5,6-TETRACHLOROPYRIDAZINE manufacturers

Shanghai Rlavie Technology Co ltd
Product
3,4,5,6-tetrachloropyridazine 20074-67-3
Price
US $0.00-0.00/KG
Min. Order
1g
Purity
98%minHPLC
Supply Ability
50kgs/month
Release date
2021-11-13