157223-34-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157223-34-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,2,2 and 3 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 157223-34:
(8*1)+(7*5)+(6*7)+(5*2)+(4*2)+(3*3)+(2*3)+(1*4)=122
122 % 10 = 2
So 157223-34-2 is a valid CAS Registry Number.
157223-34-2Relevant articles and documents
Preparation of sterically-hindered organosilanes
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, (2008/06/13)
The invention relates to compositions containing compounds of the structure (I): wherein R1 is a neophyl, neohexyl or (CH3)3 SiCH2 --group; R2 is a methyl group; X is a halo group or a saturated, unsaturated, branched, unbranched or cyclic alkoxy group of 1-18 carbon atoms; a is 1 or 2, b is an integer from 0 to 2, and c is an integer from 1 to 3.
