6-Chloro-2-methyl-2H-indazol-5-amine

Name: 6-Chloro-2-methyl-2H-indazol-5-amine
Brand: ChemScene
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CAS No. 1893125-36-4
Cat. No. CS-0375281
Purity≥98%
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-2H-indazol-5-amine|CS-0375281

Structure of 1893125-36-4

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General Information

CAS No. 1893125-36-4
Cat. No. CS-0375281
Purity ≥98%
MDL No. None
Storage 4°C, protect from light
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₈H₈ClN₃
Molecular Weight 181.62
Synonym(s) Ensitrelvir Intermediate
SMILES NC1=CC2=CN(C)N=C2C=C1Cl

Description

6-Chloro-2-methyl-2H-indazol-5-amine features a chlorinated indazole core with a methyl group at the 2-position and a primary amine at the 5-position. This electron-deficient scaffold enables direct coupling in cross-coupling reactions, serving as a key building block for bioactive heterocycles in medicinal chemistry and agrochemical development.

Application

6-Chloro-2-methyl-2H-indazol-5-amine serves as a versatile building block for medicinal chemistry and agrochemical synthesis, enabling efficient construction of indazole-based scaffolds. The chloro group facilitates palladium-catalyzed cross-coupling reactions, while the primary amine supports derivatization via acylation, alkylation, or reductive amination. Bench-stable and readily purified by chromatography, it functions reliably in standard synthetic workflows requiring functional group tolerance and predictable reactivity.

Safety Information

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GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H315-H319
Precautionary Statements : P264-P280-P302+P352-P362

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Computational Chemistry Data

TPSA 43.84
LogP 1.8089
H_Acceptors 3
H_Donors 1
Rotatable_Bonds 0

Other Classifications

Building Blocks Functional Group Chloride

Building Blocks Skeleton Aromatic heterocycle compounds Indazole compounds

Key Words

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6-Chloro-2-methyl-2H-indazol-5-amine

CAS No. 1893125-36-4

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