3,6-Dichloro[1,2,4]triazolo[4,3-b]pyridazine

Product Name: 3,6-Dichloro[1,2,4]triazolo[4,3-b]pyridazine
CAS No.: 33050-38-3
Chemical Name: 3,6-Dichloro[1,2,4]triazolo[4,3-b]pyridazine
Synonyms: 3,6-Dichloro-s-triazolo[4,3-b]pyridazine;1,2,4-Triazolo[4,3-b]pyridazine, 3,6-dichloro-
CBNumber: CB61262643
Molecular Formula: C5H2Cl2N4
Formula Weight: 189
MOL File: 33050-38-3.mol

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3,6-Dichloro[1,2,4]triazolo[4,3-b]pyridazine Property

Melting point:: 140-143°C
Density: 1.90
storage temp.: under inert gas (nitrogen or Argon) at 2-8°C
form: solid
pka: -2.88±0.30(Predicted)
color: Yellow-brown

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Safety

Hazard Codes: Xi
HazardClass: IRRITANT
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

TRC

Product number: D438303
Product name: 3,6-Dichloro-[1,2,4]triazolo[4,3-b]pyridazine
Packaging: 100mg
Price: $60
Updated: 2021/12/16

Apolloscientific

Product number: OR15258
Product name: 3,6-Dichloro[1,2,4]triazolo[4,3-b]pyridazine
Packaging: 250mg
Price: $29
Updated: 2021/12/16

SynQuest Laboratories

Product number: 3H32-5-H2
Product name: 3,6-Dichloro[1,2,4]triazolo[4,3-b]pyridazine
Packaging: 250mg
Price: $32
Updated: 2021/12/16

Apolloscientific

Product number: OR15258
Product name: 3,6-Dichloro[1,2,4]triazolo[4,3-b]pyridazine
Packaging: 1g
Price: $73
Updated: 2021/12/16

SynQuest Laboratories

Product number: 3H32-5-H2
Product name: 3,6-Dichloro[1,2,4]triazolo[4,3-b]pyridazine
Packaging: 1g
Price: $80
Updated: 2021/12/16

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3,6-Dichloro[1,2,4]triazolo[4,3-b]pyridazine Chemical Properties,Usage,Production

Synthesis

33050-32-7

33050-38-3

The general procedure for the synthesis of 3,6-dichloro-[1,2,4]triazolo[4,3-b]pyridazine using 6-chloro-[1,2,4]triazolo[4,3-b]pyridazin-3(2H)-one as starting material is as follows: 6-chloro-[1,2,4]triazolo[4,3-b]pyridazin-3(2H)-one (1 eq.) was added to phosphorochloridic acid (10 eq.). The reaction mixture was heated to reflux and maintained for 20 hours. After completion of the reaction, the mixture was evaporated to dryness. The residue was dissolved in ethyl acetate and washed with saturated aqueous potassium carbonate. The organic layer was dried over anhydrous sodium sulfate, filtered and evaporated to dryness to give Intermediate D in 93% yield. The product was a pale yellow solid.1H NMR (MeOD-d4) data were as follows: δ 7.51 (dd, 1H, J = 9.6Hz, 0.9Hz); δ 8.30 (dd, 1H, J = 9.6Hz, 0.9Hz).

References

[1] Patent: WO2013/45519, 2013, A1. Location in patent: Page/Page column 43

3,6-Dichloro[1,2,4]triazolo[4,3-b]pyridazine Preparation Products And Raw materials

Raw materials

Preparation Products

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3,6-Dichloro[1,2,4]triazolo[4,3-b]pyridazine Suppliers

China 61 India 2 United Kingdom 3 United States 6 Global 72

J & K SCIENTIFIC LTD.

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View Lastest Price from 3,6-Dichloro[1,2,4]triazolo[4,3-b]pyridazine manufacturers

Shanghai Rlavie Technology Co ltd

Product: 3,6-Dichloro[1,2,4]Triazolo[4,3-b]Pyridazine 33050-38-3
Price: US $0.00-0.00/KG
Min. Order: 1g
Purity: 98%minHPLC
Supply Ability: 100kgs/month
Release date: 2021-11-15

Career Henan Chemical Co

Product: 3,6-Dichloro[1,2,4]triazolo[4,3-b]pyridazine 33050-38-3
Price: US $3.00/KG
Min. Order: 1KG
Purity: 98%
Supply Ability: 100KG
Release date: 2020-02-04

33050-38-3, 3,6-Dichloro[1,2,4]triazolo[4,3-b]pyridazineRelated Search:

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33050-38-3

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