89221-45-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89221-45-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,2,2 and 1 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 89221-45:
(7*8)+(6*9)+(5*2)+(4*2)+(3*1)+(2*4)+(1*5)=144
144 % 10 = 4
So 89221-45-4 is a valid CAS Registry Number.
89221-45-4Relevant academic research and scientific papers
SYNTHESIS AND HYDRATION OF DERIVATIVES OF 3-ALLYL-3HBENZODIAZEPINE-2,4-DIONES
Wagner, Edwin
, p. 131 - 139 (2007/10/02)
Hydration of derivatives of 3-allyl-3Hbenzodiazepine-2,4-diones (3a-g) and 5,5-diallyl- and 5-allyl-5-phenylbarbituric acids with 100percent H2SO4 yields compounds 4a-g, 11a, b, c and 13a, b and 15a, b.Some data indicate formation of cation 8 as an i