138761-45-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138761-45-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,7,6 and 1 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 138761-45:
(8*1)+(7*3)+(6*8)+(5*7)+(4*6)+(3*1)+(2*4)+(1*5)=152
152 % 10 = 2
So 138761-45-2 is a valid CAS Registry Number.
138761-45-2Relevant articles and documents
Carbon-silicon hyperconjugation X-ray structural study of N-methyl-4-trimethylsilylmethylpyridinium triflate
Happer, Alan,N.G, Janice,Pool, Brett,White, Jonathan
, p. 10 - 14 (2002)
Hyperconjugation between the CH2-Si bond and the charged pyridinium π system in the N-methyl 4-trimethylsilylmethyl pyridinium ion (8), manifests in the crystal structure as lengthening of the CH2-Si bond, shortening of the CH2