143840-23-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143840-23-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,8,4 and 0 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 143840-23:
(8*1)+(7*4)+(6*3)+(5*8)+(4*4)+(3*0)+(2*2)+(1*3)=117
117 % 10 = 7
So 143840-23-7 is a valid CAS Registry Number.
143840-23-7Relevant academic research and scientific papers
A modified synthesis of (±)-β-aryllactic acids
Wong,Xu,Chang,Lee
, p. 793 - 797 (2007/10/02)
The synthesis of racemic forms of the reportedly active principle of Danshen, namely (±)-β-(3,4-dihydroxyphenyl)lactic acid [(±)3-(3,4-dihydroxyphenyl)-2-hydroxypropanoic acid] and its seven racemic derivatives is reported.
