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1H-Pyrazole, 4,5-dihydro-1,3-dimethyl-5-phenyl- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

20409-82-9

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20409-82-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20409-82-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,4,0 and 9 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 20409-82:
(7*2)+(6*0)+(5*4)+(4*0)+(3*9)+(2*8)+(1*2)=79
79 % 10 = 9
So 20409-82-9 is a valid CAS Registry Number.

20409-82-9SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 20, 2017

Revision Date: Aug 20, 2017

1.Identification

1.1 GHS Product identifier

Product name 1,3-dimethyl-5-phenyl-4,5-dihydropyrazole

1.2 Other means of identification

Product number -
Other names 1,3-Dimethyl-5-phenyl-4,5-dihydro-1H-pyrazol

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:20409-82-9 SDS

20409-82-9Relevant academic research and scientific papers

Clean three-step synthesis of 4,5-dihydro-1H-pyrazoles starting from alcohols using polymer supported reagents

Haunert, Frank,Bolli, Martin H.,Hinzen, Berthold,Ley, Steven V.

, p. 2235 - 2237 (2007/10/03)

Nafion-TMS mediated Mukaiyama aldol reaction of silyl enol ethers with aldehydes, obtained from mild oxidation of alcohols with polymer supported perruthenate (PSP), yielded α,β-unsaturated ketones, which upon treatment with hydrazines allowed the clean synthesis of 4,5-dihydro-1H-pyrazoles.

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