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119994-40-0

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119994-40-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 119994-40-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,9,9,9 and 4 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 119994-40:
(8*1)+(7*1)+(6*9)+(5*9)+(4*9)+(3*4)+(2*4)+(1*0)=170
170 % 10 = 0
So 119994-40-0 is a valid CAS Registry Number.

119994-40-0Downstream Products

119994-40-0Relevant articles and documents

Visible-light photocatalyzed oxidative decarboxylation of oxamic acids: a green route to urethanes and ureas

Pawar, Govind Goroba,Robert, Frédéric,Grau, Etienne,Cramail, Henri,Landais, Yannick

, p. 9337 - 9340 (2018)

A sustainable metal-free route to urethanes and ureas based on a photocatalyzed oxidative decarboxylation of oxamic acids is described. The reaction includes in situ generation of an isocyanate from the oxamic acid, using an organic dye as a photocatalyst, a hypervalent iodine reagent as an oxidant and a light source, which trigger the free-radical decarboxylation. This protocol successfully avoids the isolation, purification and storage of carcinogenic isocyanates and allows elaboration of urethanes and ureas in a one-pot process from commercially available sources.

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