171814-31-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 171814-31-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,8,1 and 4 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 171814-31:
(8*1)+(7*7)+(6*1)+(5*8)+(4*1)+(3*4)+(2*3)+(1*1)=126
126 % 10 = 6
So 171814-31-6 is a valid CAS Registry Number.
171814-31-6Relevant articles and documents
Preparation of 7-ethoxy-3-hydroxy-6-methoxy-1-methyl-4-nitroisoquinoline
Barton,Fabian,Lam,Sterbenz
, p. 1397 - 1399 (2007/10/03)
This paper reports the large scale preparation of 7-ethoxy-3-hydroxy-6-methoxy-1-methyl-4-nitroisoquinoline (RWJ 19959, 2) from an available starting material, 4-ethoxy-3-methoxyphenylacetic acid (9). Previously 2 was prepared via a perchlorate salt which
