399557-51-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 399557-51-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,9,9,5,5 and 7 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 399557-51:
(8*3)+(7*9)+(6*9)+(5*5)+(4*5)+(3*7)+(2*5)+(1*1)=218
218 % 10 = 8
So 399557-51-8 is a valid CAS Registry Number.
399557-51-8Relevant articles and documents
A new method for the synthesis of fluorinated vinyl sulfides and ketene dithioacetals
Kovregin,Sizov,Ermolov
, p. 1044 - 1046 (2007/10/03)
A new method was developed for the synthesis of fluorine-containing functionally substituted vinyl sulfides and ketene dithioacetals from the corresponding derivatives of α-trifluoromethyl-substituted CH-acids and thiols in the presence of BF3
