113931-90-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 113931-90-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,3,9,3 and 1 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 113931-90:
(8*1)+(7*1)+(6*3)+(5*9)+(4*3)+(3*1)+(2*9)+(1*0)=111
111 % 10 = 1
So 113931-90-1 is a valid CAS Registry Number.
113931-90-1Relevant articles and documents
SYNTHESIS OF (+/-)-ISOCOMBRETASTATINS A-C
Singh, Sheo Bux,Pettit, George R.
, p. 877 - 892 (2007/10/02)
With the African bush willow (Combretum caffrum) constituent R(-)-combretastatin (1a) as a model syntheses of isocombretastatins A(1b), B(1c) and C(1d) were completed.Reaction (ultrasound prompted) between the lithium derivative of benzyl bromide 2b and s
