19646-22-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19646-22-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,6,4 and 6 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 19646-22:
(7*1)+(6*9)+(5*6)+(4*4)+(3*6)+(2*2)+(1*2)=131
131 % 10 = 1
So 19646-22-1 is a valid CAS Registry Number.
19646-22-1Relevant articles and documents
A process for preparing 1 - (4 - benzoyl amino - phenyl) -3 - phenyl propane - 1, 3 - dione method
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Paragraph 0030-0031; 0034-0035, (2019/06/05)
The present invention discloses a process for preparing 1 - (4 - benzoyl amino - phenyl) - 3 - phenyl-propane - 1, 3 - dione method. In order to 4 - amino acetophenone and benzoic acid ester as the raw material, under protection of inert gas, in order to
