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494205-57-1

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494205-57-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 494205-57-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,4,2,0 and 5 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 494205-57:
(8*4)+(7*9)+(6*4)+(5*2)+(4*0)+(3*5)+(2*5)+(1*7)=161
161 % 10 = 1
So 494205-57-1 is a valid CAS Registry Number.

494205-57-1Relevant articles and documents

Asymmetric synthesis of chiral polymers by means of repetitive addition of allylsilane to aldehyde

Itsuno, Shinichi,Kumagai, Toshihiro

, p. 941 - 944 (2007/10/03)

Monomers having both allyltrimethylsilyl and formyl groups were prepared. Chiral (acyloxy)borane initiated the repetitive polyaddition of the monomers to give optically active polymers having main chain configurational chirality. Optical purity of the chiral polymer was evaluated by the analysis of the degradation product.

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