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21979-72-6

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21979-72-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21979-72-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,9,7 and 9 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 21979-72:
(7*2)+(6*1)+(5*9)+(4*7)+(3*9)+(2*7)+(1*2)=136
136 % 10 = 6
So 21979-72-6 is a valid CAS Registry Number.

21979-72-6Downstream Products

21979-72-6Relevant academic research and scientific papers

Transmission of Internal Rotations: Correlated, Uncorrelated, and Localized Disrotatory Rotations in Propeller Chains

Lindner, Ariel B.,Grynszpan, Flavio,Biali, Silvio E.

, p. 6662 - 6670 (1993)

The stereochemistry of the propeller chain systems 5 and 6 is analyzed.These systems possessing two or three partially overlapping diarylmethyl moieties, respectively, exist in several conformations arising from the different possible helicities and chain

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