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138991-02-3

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138991-02-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138991-02-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,9,9 and 1 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 138991-02:
(8*1)+(7*3)+(6*8)+(5*9)+(4*9)+(3*1)+(2*0)+(1*2)=163
163 % 10 = 3
So 138991-02-3 is a valid CAS Registry Number.

138991-02-3SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 20, 2017

Revision Date: Aug 20, 2017

1.Identification

1.1 GHS Product identifier

Product name 1,3,4-tri(cyclohexa-1,5-dien-1-yl)pyridin-2-one

1.2 Other means of identification

Product number -
Other names 1,3,4-Triphenyl-3,4-dihydro-2(1H)pyridone

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:138991-02-3 SDS

138991-02-3Downstream Products

138991-02-3Relevant articles and documents

N-[[(chlorosulfinyl)oxy]methylene]-N-methylmethanaminium chloride as a dehydrating agent. A direct and efficient one-pot synthesis of various pyrimidinones, azetidinones and pyridones via cycloaddition reactions

Singh,Mahajan,Prajapati,Sandhu

, p. 1026 - 1028 (2007/10/02)

N-[[(Chlorosulfinyl)oxy]methylene]-N-methylmethanaminium chloride (1) is found to be an efficient and mild dehydrating agent for the in situ generation of monophenyl- (4a) diphenyl- (4b) and monochloroketenes (4c) directly from the corresponding carboxylic acids 2. These ketenes undergo cycloaddition reactions with 1,3-diaza-1,3-butadienes 5 to afford 4(3H)-pyrimidinones 6 and azetidones 7, and with 3-(aryliminomethyl)chromones 8 to give [1]benzopyrano[3,2-c]pyridine-3,10[2H]diones 9.

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