6991-16-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6991-16-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,9,9 and 1 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 6991-16:
(6*6)+(5*9)+(4*9)+(3*1)+(2*1)+(1*6)=128
128 % 10 = 8
So 6991-16-8 is a valid CAS Registry Number.
6991-16-8Relevant articles and documents
Potential prophylactic antitumor activity of retinylidene 1,3-diketones
Acton,Brossi,Newton,Sporn
, p. 805 - 809 (2007/10/02)
Treatment of all-trans-retinal with a series of 1,3-diketones using Knoevenagel conditions gave the expected condensation products. These retinylidene 1,3-diketones were characterized and their biological activities in the hamster tracheal organ culture t