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544428-91-3

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544428-91-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 544428-91-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,4,4,2 and 8 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 544428-91:
(8*5)+(7*4)+(6*4)+(5*4)+(4*2)+(3*8)+(2*9)+(1*1)=163
163 % 10 = 3
So 544428-91-3 is a valid CAS Registry Number.

544428-91-3Relevant articles and documents

Bifunctional organocatalyst for activation of carbon dioxide and epoxide to produce cyclic carbonate: Betaine as a new catalytic motif

Tsutsumi, Yoshihiro,Yamakawa, Kyohei,Yoshida, Masahiko,Ema, Tadashi,Sakai, Takashi

, p. 5728 - 5731 (2010)

Bifunctional organocatalysts bearing an ammonium betaine framework have been developed as a new catalytic motif for the activation of carbon dioxide and epoxides to produce cyclic carbonates.

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