157904-53-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157904-53-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,9,0 and 4 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 157904-53:
(8*1)+(7*5)+(6*7)+(5*9)+(4*0)+(3*4)+(2*5)+(1*3)=155
155 % 10 = 5
So 157904-53-5 is a valid CAS Registry Number.
157904-53-5Relevant articles and documents
An improved synthesis of substituted indan-1-carboxylic acid
Gan, Zongjie,Zhang, Di,Cao, Zhe,Xu, Yungen
, p. 317 - 319 (2011)
Substituted indan-1-carboxylic acid compounds have been prepared by clyclisation of the phenyl succinic acid and reduction of the indanon-1-carboxylic acid with triethylsilane in trifluoracetic acid.
