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74893-05-3

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74893-05-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74893-05-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,8,9 and 3 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 74893-05:
(7*7)+(6*4)+(5*8)+(4*9)+(3*3)+(2*0)+(1*5)=163
163 % 10 = 3
So 74893-05-3 is a valid CAS Registry Number.

74893-05-3Downstream Products

74893-05-3Relevant articles and documents

Photocycloaddition of Methylcyclobutene and (-)-Piperitone: Synthesis of (-)-Shyobunone and Related Sesquiterpenes

Williams, John R.,Callahan, James F.

, p. 4475 - 4478 (1980)

Photocycloaddition of methylcyclobutene to (-)-piperitone affords the photoadduct 3a.Flash vacuum pyrolysis of the photoadduct 3a affords (-)-shyobunone (4a), 2-epi-(-)-shyobunone (5a), 3-epi-(-)-shybunone(6a),2,3-diepi-(-)-shyobunone (7a), and (R)-(+)-is

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