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128790-75-0

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128790-75-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128790-75-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,7,9 and 0 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 128790-75:
(8*1)+(7*2)+(6*8)+(5*7)+(4*9)+(3*0)+(2*7)+(1*5)=160
160 % 10 = 0
So 128790-75-0 is a valid CAS Registry Number.

128790-75-0Downstream Products

128790-75-0Relevant articles and documents

Synthesis of 6-substituted 2'-deoxyguanosine derivatives using trifluoroacetic anhydride in pyridine

Fathi,Goswami,Kung,Gaffney,Jones

, p. 319 - 322 (2007/10/02)

Trifluoroacetic anhydride at 0°C reacts with a pyridine suspension of deoxyguanosine to generate a polar intermediate, presumably the corresponding 6-pyridyl derivative. The reaction is complete in less than 15 minutes, and is not accompanied by degradation. From this intermediate a variety of 6-substituted deoxyguanosine derivatives can be obtained, some in excellent yields.

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