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118931-21-8

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118931-21-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 118931-21-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,9,3 and 1 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 118931-21:
(8*1)+(7*1)+(6*8)+(5*9)+(4*3)+(3*1)+(2*2)+(1*1)=128
128 % 10 = 8
So 118931-21-8 is a valid CAS Registry Number.

118931-21-8Downstream Products

118931-21-8Relevant articles and documents

Encapsulation enhanced dimerization of a series of 4-aryl-N- methylpyridinium derivatives in water: New building blocks for self-assembly in aqueous media

Zhang, Ying,Zhou, Tian-You,Zhang, Kang-Da,Dai, Jin-Ling,Zhu, Yuan-Yuan,Zhao, Xin

, p. 1530 - 1534 (2014)

The construction of supramolecular systems in aqueous media is still a great challenge owing to the limited sources of building blocks. In this study, a series of 4-aryl-N-methylpyridinium derivatives have been synthesized. They formed very stable host-gu

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