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1263203-90-2

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1263203-90-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1263203-90-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,3,2,0 and 3 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1263203-90:
(9*1)+(8*2)+(7*6)+(6*3)+(5*2)+(4*0)+(3*3)+(2*9)+(1*0)=122
122 % 10 = 2
So 1263203-90-2 is a valid CAS Registry Number.

1263203-90-2Upstream product

1263203-90-2Downstream Products

1263203-90-2Relevant academic research and scientific papers

Intramolecular iodoetherification of ene or diene ketals: Facile synthesis of spiroketals

Fujioka, Hiromichi,Nakahara, Kenji,Hirose, Hideki,Hirano, Kie,Oki, Tomohiro,Kita, Yasuyuki

, p. 1060 - 1062 (2011)

A novel and rapid approach to chiral mono- or di-substituted spiroketals based on remote asymmetric induction by intramolecular iodoetherification of ene or diene ketals has been developed. This strategy concisely offers 5,5- and 5,6-spiroketals including

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