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80921-73-9

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80921-73-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 80921-73-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,9,2 and 1 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 80921-73:
(7*8)+(6*0)+(5*9)+(4*2)+(3*1)+(2*7)+(1*3)=129
129 % 10 = 9
So 80921-73-9 is a valid CAS Registry Number.

80921-73-9Downstream Products

80921-73-9Relevant articles and documents

α,β-UNSATURATED KETONES IN SUBSTITUTIVE ADDITION WITH 2-ALKYLFURANS AND SOME TRANSFORMATIONS OF THE REACTION PRODUCTS

Akhmedov, Sh. T.,Sadykhov, N. S.,Akhmedova, R. Sh.,Zefirov, N. S.

, p. 1158 - 1161 (2007/10/02)

The substitutive addition of cyclic α,β-unsaturated ketones with 2-alkylfurans proceeds in the presence of catalytic amounts of sulfuric acid to give the corresponding furyl ketones.The latter were converted by Kishner reduction to cycloalkylfurans and were also converted to ethyleneketals, which form adducts with maleic anhydride.

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