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131527-30-5

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131527-30-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131527-30-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,5,2 and 7 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 131527-30:
(8*1)+(7*3)+(6*1)+(5*5)+(4*2)+(3*7)+(2*3)+(1*0)=95
95 % 10 = 5
So 131527-30-5 is a valid CAS Registry Number.

131527-30-5Downstream Products

131527-30-5Relevant articles and documents

OXIDATIVE COUPLING IN 4a,9-DIAZA-1,2,4a,9a-TETRAHYDROFLUORENE DERIVATIVES. 2. SYNTHESIS OF METHYLENEQUINONEIMINES

Slabko, O. Yu.,Mezhennaya, L. V.,Kaminskii, V. A.,Tilichenko, M. N.

, p. 649 - 654 (2007/10/02)

The oxidative coupling of 4a,9-diaza-1,2,4a,9a-tetrahydro-9H-fluorene derivatives with methylene-active compounds in the presence of MnO2 leads to substituted (at the methylene group) 6-methylene-4a,9-diaza-1,2,4a,9a-tetrahydro-6H-fluorene derivatives.The corresponding 2,2-disubstituted 5-dicyanomethylene-3,5-dihydrobenzimidazoles were obtained in the reaction of 2,2-disubstituted benzimidazolines with malonitrile in the presence of MnO2.

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