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139244-50-1

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139244-50-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139244-50-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,2,4 and 4 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 139244-50:
(8*1)+(7*3)+(6*9)+(5*2)+(4*4)+(3*4)+(2*5)+(1*0)=131
131 % 10 = 1
So 139244-50-1 is a valid CAS Registry Number.

139244-50-1SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name (2,3,4,5,6-pentafluorophenyl) pyrazine-2-carboxylate

1.2 Other means of identification

Product number -
Other names Pyrazine-2-carboxylic acid pentafluorophenyl ester

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:139244-50-1 SDS

139244-50-1Relevant articles and documents

Aminolysis of aryl ester using tertiary amine as amino donor via c-o and c-n bond activations

Bao, Yong-Sheng,Zhaorigetu, Bao,Agula, Bao,Baiyin, Menghe,Jia, Meilin

, p. 803 - 808 (2014/04/03)

An aminolysis reaction between various aryl esters and inert tertiary amines by C-O and C-N bond activations has been developed for the selective synthesis of a broad scope of tertiary amides under neutral and mild conditions. The mechanism may undergo the two key steps of oxidative addition of acyl C-O bond in parent ester and C-N bond cleavage of tertiary amine via an iminium-type intermediate.

Antimycobacterial Activity of a Series of Pyrazinoic Acid Esters

Cynamon, Michael H.,Klemens, Sally P.,Chou, Tso-Sheng,Gimi, Rayomand H.,Welch, John T.

, p. 1212 - 1215 (2007/10/02)

A series of pyrazinoic acid esters has been prepared and evaluated for in vitro antimycobacterial activity.Several of the pyrazinoate esters have substantially better activity than the first-line antituberculous agent pyrazinamide against susceptible isolates of Mycobacterium tuberculosis as well as activity against pyrazinamide-resistant isolates.The minimal inhibitory concentrations (MICs) were lower for each organism and at each pH than the MICs for pyrazinamide.The esters have activity against Mycobacterium bovis and Mycobacterium kansasii, two species resistant to pyrazinamide, but not against Mycobacterium avium complex.

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