39720-25-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 39720-25-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,7,2 and 0 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 39720-25:
(7*3)+(6*9)+(5*7)+(4*2)+(3*0)+(2*2)+(1*5)=127
127 % 10 = 7
So 39720-25-7 is a valid CAS Registry Number.
39720-25-7Relevant academic research and scientific papers
Quinone methide photograhpic reagent precursors
-
, (2008/06/13)
Novel compounds are disclosed which release a photographic reagent in the presence of alkali and are therefore useful in photographic products and processes. The compounds may be defined as quinone- or naphthoquinonemethide precursors containing a mercapt