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98057-60-4

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98057-60-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 98057-60-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,0,5 and 7 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 98057-60:
(7*9)+(6*8)+(5*0)+(4*5)+(3*7)+(2*6)+(1*0)=164
164 % 10 = 4
So 98057-60-4 is a valid CAS Registry Number.

98057-60-4Relevant articles and documents

Di-tert-butyl N,N-Diethylphosphoramidite. A New Phosphitylating Agent for the Efficient Phosphorylation of Alcohols

Perich, John W.,Johns, R. B.

, p. 142 - 144 (1988)

Alkyl and aryl di-tert-butyl phosphates were prepared in high yields by the 1H-tetrazole-promoted phosphitylation of alkyl and aryl alcohols with di-tert-butyl N,N-diethylphosphoramidite, followed by oxidation of the resultant alkyl and aryl di-tert-butyl

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