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97961-55-2

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97961-55-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 97961-55-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,9,6 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 97961-55:
(7*9)+(6*7)+(5*9)+(4*6)+(3*1)+(2*5)+(1*5)=192
192 % 10 = 2
So 97961-55-2 is a valid CAS Registry Number.

97961-55-2Relevant articles and documents

Synthesis and Properties of Purinophanes: Relationship between the Magnitude of Hypochromism and Stacking Geometry of Purine Rings

Seyama, F.,Akahori, K.,Sakata, Y.,Misumi, S.,Aida, M.,Nagata, C.

, p. 2192 - 2201 (1988)

Twelve purinophanes 1-12, in which two purine rings are fixed with different modes of stacking by two or three polymethylene chains, have been prepared by either stepwise introduction of the linking chains or quasi-dimerization of disubstituted purine der

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