98907-91-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98907-91-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,9,0 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 98907-91:
(7*9)+(6*8)+(5*9)+(4*0)+(3*7)+(2*9)+(1*1)=196
196 % 10 = 6
So 98907-91-6 is a valid CAS Registry Number.
98907-91-6Relevant articles and documents
Antihypertensive dihydropyridine-5-phosphonic acid cyclic esters
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, (2008/06/13)
A compound of the formula: STR1 where X is hydrogen, nitro, trifluoromethyl, fluorine, chlorine, bromine or iodine; A is 1,3-propylene or 1,4-butylene which may be substituted by C1 -C3 alkyl, R is C1 -C4 alkyl,