6-Chloro-2-methyl-2,3-dihydropyridazin-3-one

Name: 6-Chloro-2-methyl-2,3-dihydropyridazin-3-one
Brand: ChemScene
Availability: InStock
Rating: 5 (1 reviews)

CAS No. 10071-38-2
Cat. No. CS-0076753
Purity≥97%
MDL No.None

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Type	HazMat Fee
Excepted Quantity	$0.00
FedEx Limited Quantities Ground	$0.00
Hazmat Ground shipping	$50.00+
Inaccessible (Haz class 6.1 or 9), Domestic	$68.00+
Accessible (Haz class 3, 4, 5 or 8), Domestic	$158.00+
Inaccessible (Haz class 6.1 or 9), International	$108.00+
Accessible (Haz class 3, 4, 5 or 8), International	$238.00+

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6-Chloro-2-methyl-2,3-dihydropyridazin-3-one|CS-0076753

Structure of 10071-38-2

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General Information

CAS No. 10071-38-2
Cat. No. CS-0076753
Purity ≥97%
MDL No. None
Storage 4°C, sealed storage, away from moisture
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₅H₅ClN₂O
Molecular Weight 144.56
Synonym(s) 6-chloro-2-methylpyridazin-3(2H)-one
SMILES O=C1N(C)N=C(Cl)C=C1

Description

6-Chloro-2-methyl-2,3-dihydropyridazin-3-one is a bench-stable, electron-deficient heterocycle featuring a chlorinated pyridazinone core. This scaffold integrates readily into synthetic routes requiring polar, nitrogen-rich intermediates. Its constrained geometry and reactive carbonyl moiety enable efficient coupling with nucleophiles under mild conditions.

Application

6-Chloro-2-methyl-2,3-dihydropyridazin-3-one serves as a versatile building block in medicinal chemistry, enabling efficient construction of nitrogen-containing heterocycles. Its chloro and carbonyl functionalities support diverse downstream transformations, including nucleophilic substitution and coupling reactions. The molecule exhibits good bench stability and facilitates the synthesis of pharmaceutically relevant scaffolds through predictable reactivity patterns.

Synthesis

Route1
- In-stock
  
  19064-67-6
- 74-88-4
- ~87%
- In-stock
  
  10071-38-2
References
- PIERRE FABRE MEDICAMENT; DUPONT-PASSELAIGUE, Elisabeth; MIALHE, Samuel; RIEU, Jean-Pierre; JUNQUERO, Didier; VALEILLE, Karine Patent: WO2011/15629 A1, 2011 ; Location in patent: Page/Page column 68; 69 ; WO 2011/015629 A1
Route2
- 5436-01-1
- ~%
- In-stock
  
  10071-38-2
References
- Eichenberger et al. Helvetica Chimica Acta, 1954 , vol. 37, p. 837,848

Safety Information

Download SDS

GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H302-H315-H319-H335
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P305+P351+P338-P330-P362+P364-P403+P233-P405-P501

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Computational Chemistry Data

TPSA 34.89
LogP 0.4337
H_Acceptors 3
H_Donors 0
Rotatable_Bonds 0

Other Classifications

Building Blocks Skeleton Aromatic heterocycle compounds Pyridazine compounds

Key Words

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6-Chloro-2-methyl-2,3-dihydropyridazin-3-one

CAS No. 10071-38-2

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