1181811-99-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1181811-99-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,1,8,1 and 1 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1181811-99:
(9*1)+(8*1)+(7*8)+(6*1)+(5*8)+(4*1)+(3*1)+(2*9)+(1*9)=153
153 % 10 = 3
So 1181811-99-3 is a valid CAS Registry Number.
1181811-99-3Relevant articles and documents
The first synthesis of diethyl α,α- chlorofluorobenzylphosphonates
Wu, Di,He, Yanhong,Tang, Rongchang,Guan, Zhi
, p. 2180 - 2182 (2011/03/20)
Starting from a-hydroxyphosphonates, a wide variety of diethyl α,α-chlorofluorobenzylphosphonates have been obtained in pure form in a two-step procedure. The first step was chlorination of a- hydroxyphosphonates with Ph3P and CCl4,
