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78506-85-1

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78506-85-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 78506-85-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,5,0 and 6 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 78506-85:
(7*7)+(6*8)+(5*5)+(4*0)+(3*6)+(2*8)+(1*5)=161
161 % 10 = 1
So 78506-85-1 is a valid CAS Registry Number.

78506-85-1Relevant articles and documents

STERIC INHIBITION OF ?-ELECTRON DELOCALIZATION IN 1,3-DIENES. CIRCULAR DICHROISM OF METHYLISOPULEGENE AND 3,8-p-MENTHADIENE

Lightner, David A.,Crist, B. Vincent

, p. 685 - 688 (1981)

The conjugated diene, "methylisopulegene" (1, 1-isopropenyl-2,4-dimethyl-1-cyclohexene), exhibits a CD Cotton effect (CE) with Δε217 = +1.77 but no UV maximum down to 200 nm; whereas, the structurally related conjugated diene, 3,-8-p-menthadiene (2, 1-isopropenyl-4-methyl-1-cyclohexene), exhibits a more normal UV maximum at 232 nm (ε = 17,300) and a CE with Δε240 = +2.56.

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