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179129-02-3

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179129-02-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 179129-02-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,9,1,2 and 9 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 179129-02:
(8*1)+(7*7)+(6*9)+(5*1)+(4*2)+(3*9)+(2*0)+(1*2)=153
153 % 10 = 3
So 179129-02-3 is a valid CAS Registry Number.

179129-02-3Relevant articles and documents

Synthesis of (+)-salvianolic acid A from sodium Danshensu

Xu, Kai,Liu, Hao,Liu, Delong,Sheng, Cheng,Shen, Jiefeng,Zhang, Wanbin

, p. 5996 - 6002 (2018)

(+)-Salvianolic acid A, one of the most active components in the traditional Chinese medicine Danshen, has been synthesized over 10 steps in 6.5% overall yield. Starting from inexpensive ortho-vanillin and sodium Danshensu (synthesized via asymmetric catalysis in our group), the process consists of the following: A Wittig reaction that gives the desire product with absolute E-configuration, a demethylation reaction with AlCl3 in a satisfactory yield, and a practical deprotection of allylic groups to afford the terminal product (+)-salvianolic acid A. The current synthetic technology possesses the advantages of using inexpensive starting materials, mild reaction conditions and has the potential for use in large scale synthesis.

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