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20781-21-9 Usage


2,4-Dimethoxybenzylamine hydrochloride is an organic compound with the chemical formula C9H13Cl2NO3. It is a white to light yellow crystalline powder that is soluble in water and various organic solvents. 2,4-Dimethoxybenzylamine hydrochloride is known for its reactivity and is commonly used in the synthesis of various organic compounds, particularly in the pharmaceutical and chemical industries.


Used in Pharmaceutical Industry:
2,4-Dimethoxybenzylamine hydrochloride is used as a reagent for the protection of amide function in glutamine and asparagine during peptide synthesis. This application is crucial in the development of new drugs and therapeutic agents, as it helps to prevent unwanted reactions and side products during the synthesis process.
Used in Chemical Synthesis:
In the field of organic chemistry, 2,4-Dimethoxybenzylamine hydrochloride is used as a key intermediate in the synthesis of various organic compounds. For example, it was used in the synthesis of 2-(2,4-dimethoxybenzylamino)-4-phenyl-3-butenonitrile, a compound with potential applications in the development of new pharmaceuticals and other chemical products.
Overall, 2,4-Dimethoxybenzylamine hydrochloride is a versatile compound with applications in both the pharmaceutical and chemical industries, primarily as a reagent and intermediate in the synthesis of various organic compounds and pharmaceuticals.

Check Digit Verification of cas no

The CAS Registry Mumber 20781-21-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,7,8 and 1 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 20781-21:
89 % 10 = 9
So 20781-21-9 is a valid CAS Registry Number.

20781-21-9 Well-known Company Product Price

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  • Aldrich

  • (178608)  2,4-Dimethoxybenzylaminehydrochloride  97%

  • 20781-21-9

  • 178608-25G

  • 2,503.80CNY

  • Detail



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017


1.1 GHS Product identifier

Product name (2,4-dimethoxyphenyl)methanamine,hydrochloride

1.2 Other means of identification

Product number -

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:20781-21-9 SDS

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