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161803-77-6

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161803-77-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 161803-77-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,8,0 and 3 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 161803-77:
(8*1)+(7*6)+(6*1)+(5*8)+(4*0)+(3*3)+(2*7)+(1*7)=126
126 % 10 = 6
So 161803-77-6 is a valid CAS Registry Number.

161803-77-6Relevant articles and documents

Synthesis of 7E,9Z-dodecadienyl acetate, the sex pheromone of Lobesia botrana Shiff

Chrelashvili, Z. G.,Mavrov, M. V.,Dolidze, A. V.,Voronkov, A. P.,Serebryakov, E. P.

, p. 734 - 736 (2007/10/02)

Two syntheses of 7E,9Z-dodecadienyl acetate from 1,3-butadiyne were carried out using either 2E,4Z-heptadienyl acetate or 1-bromo-3E,5Z-octadiene as the key intermediates.The latter underwent organocopper cross-coupling with the respective complementary Grignard reagents (prepared from the corresponding 1-tert-butoxy-ω-chlorohydrins) as alkylating agents.

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