70978-47-1 Usage
Preparation
Preparation by nitration of 5-ethyl-2-hydroxypropiophenone at ?20° (25%), with concentrated nitric acid (d = 1.42) in concentrated sulfuric acid between ?15° and 5°.
Check Digit Verification of cas no
The CAS Registry Mumber 70978-47-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,9,7 and 8 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 70978-47:
(7*7)+(6*0)+(5*9)+(4*7)+(3*8)+(2*4)+(1*7)=161
161 % 10 = 1
So 70978-47-1 is a valid CAS Registry Number.