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140137-33-3

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140137-33-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 140137-33-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,1,3 and 7 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 140137-33:
(8*1)+(7*4)+(6*0)+(5*1)+(4*3)+(3*7)+(2*3)+(1*3)=83
83 % 10 = 3
So 140137-33-3 is a valid CAS Registry Number.

140137-33-3SDS

SAFETY DATA SHEETS

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.Identification

1.1 GHS Product identifier

Product name 1-(2,4-dimethylphenyl)-2,5-dimethyl-1H-pyrrole

1.2 Other means of identification

Product number -
Other names 1-(2,4-dimethyl-phenyl)-2,5-dimethyl-pyrrole

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:140137-33-3 SDS

140137-33-3Relevant articles and documents

Microwave assisted synthesis of pyrroles

Danks, Timothy N.

, p. 3957 - 3960 (1999)

The synthesis of pyrroles by reaction of hexane-2,5-dione with primary amines has been shown to occur in less than 2 minutes under microwave activation.

Synthesis of Fe3O4@L-proline@SO3H as a novel and reusable acidic magnetic nanocatalyst and its application for the synthesis of N-substituted pyrroles at room temperature under ultrasonic irradiation and without solvent

Behbahani, Farahnaz K.,Shokri, Fatemeh

, (2021/08/18)

N-Substituted pyrroles have been prepared in high isolated yields (65–90%) by the reaction of hexane-2,5-dione with amines or diamines in the presence of Fe3O4@L-proline@SO3H at ambient temperature under ultrasonic irradiation and without solvent. The experimental procedure involves simple operations, and the products are readily separated by external magnet. The same reaction of hexane-2,5-dione with amines containing electron-acceptor substituents, such as 4-nitroaniline, resulted in fair yields of pyrrole derivatives.

Efficient synthesis of substituted pyrroles through Pd(OCOCF3)2-catalyzed reaction of 5-hexen-2-one with primary amines

Chen, Xi,Yang, Meng,Zhou, Min

supporting information, p. 5215 - 5218 (2016/11/11)

An efficient and facile Pd(OCOCF3)2-catalyzed one-pot cascade protocol has been developed for the synthesis of multiple substituted pyrroles in good to excellent yields. Unlike the reported method starting from the 2-alkenal-1,3-carbonyl compounds, the process utilizes the less reactive 5-hexen-2-one and the method has great potential as a complement to the current developed methods.

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