158501-39-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 158501-39-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,5,0 and 1 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 158501-39:
(8*1)+(7*5)+(6*8)+(5*5)+(4*0)+(3*1)+(2*3)+(1*9)=134
134 % 10 = 4
So 158501-39-4 is a valid CAS Registry Number.
158501-39-4Relevant articles and documents
Ureas in Organic Synthesis. XI. Reactions of Arylcarbinols with Carbamides in Synthesis of Biologically Active Arylmethylureas
Bakibaev, A. A.
, p. 1433 - 1437 (2007/10/03)
The reaction of arylcarbinols with carbamide in the presence of acids affords the corresponding arylmethylureas.