138421-21-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138421-21-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,4,2 and 1 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 138421-21:
(8*1)+(7*3)+(6*8)+(5*4)+(4*2)+(3*1)+(2*2)+(1*1)=113
113 % 10 = 3
So 138421-21-3 is a valid CAS Registry Number.
138421-21-3Relevant articles and documents
Synthesis of optically active 2-sila-1,3-propanediols derivatives by enzymatic transesterification
Djerourou,Blanco
, p. 6325 - 6326 (1991)
Lipase from Candida cylindracea and lipase from Chromobacterium viscosum allowed the synthesis of silyl-chiral optically active compounds by mono-transesterification of 2-sila-1,3-propanediols.
