ChemicalBook > CAS DataBase List > 3,6-Dichloro[1,2,4]triazolo[4,3-b]pyridazine
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
- 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
Matrix Scientific
- Product number
- 043200
- Product name
- 3,6-Dichloro[1,2,4]triazolo[4,3-b]pyridazine
- Purity
- >95%
- Packaging
- 1g
- Price
- $142
- Updated
- 2021/12/16
American Custom Chemicals Corporation
- Product number
- HCH0012168
- Product name
- 3,6-DICHLORO[1,2,4]TRIAZOLO[4,3-B]PYRIDAZINE
- Purity
- 95.00%
- Packaging
- 500MG
- Price
- $179.5
- 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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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
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