57996-28-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57996-28-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,9,9 and 6 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 57996-28:
(7*5)+(6*7)+(5*9)+(4*9)+(3*6)+(2*2)+(1*8)=188
188 % 10 = 8
So 57996-28-8 is a valid CAS Registry Number.
57996-28-8Relevant articles and documents
A reinvestigation on the reaction of anthrone with propargyl bromide
Majumdar, K. C.,Chattopadhyay, S. K.
, p. 514 - 515 (2007/10/02)
The structure of a product (m.p. 210 deg C) from the reaction of anthrone with propargyl bromide has been corrected as 10,10-dipropargylanthrone (1a) and not 2-methylanthrapyran (2).