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138213-71-5

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138213-71-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138213-71-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,2,1 and 3 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 138213-71:
(8*1)+(7*3)+(6*8)+(5*2)+(4*1)+(3*3)+(2*7)+(1*1)=115
115 % 10 = 5
So 138213-71-5 is a valid CAS Registry Number.

138213-71-5Downstream Products

138213-71-5Relevant articles and documents

Substituted γ-Lactones: On the Structural Elucidation of the Reaction Products from 4-Aroyl-3-hydroxy-2(5H)-furanones and 1,2-Diamines

Zimmer, Hans,Amer, Adel,Ho, Douglas,Palmer-Sungail, R.

, p. 1501 - 1510 (2007/10/02)

The reaction pathway of 4-aroyl-3-hydroxy-2(5H)-furanones 1 with diamines depends on the nature of the amine as well as on the applied reaction conditions.Thus, the reaction of 1a-d with 5,6-diamino-1,3-dimethyluracil 5 led to the formation of two isomeri

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