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121923-88-4

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121923-88-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121923-88-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,9,2 and 3 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 121923-88:
(8*1)+(7*2)+(6*1)+(5*9)+(4*2)+(3*3)+(2*8)+(1*8)=114
114 % 10 = 4
So 121923-88-4 is a valid CAS Registry Number.

121923-88-4Upstream product

121923-88-4Relevant articles and documents

A tandem approach to isoquinolines from 2-azido-3-arylacrylates and α-diazocarbonyl compounds

Yang, Yun-Yun,Shou, Wang-Ge,Chen, Zheng-Bo,Hong, Deng,Wang, Yan-Guang

, p. 3928 - 3930 (2008)

(Chemical Equation Presented) 2-Azido-3-arylacrylates react with α-diazocarbonyl compounds and triphenylphosphine to furnish isoquinolines in 60-92% yields. The tandem process involves a Wolff rearrangement, an aza-Wittig reaction, and an electrocyclic ri

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