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74234-55-2

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74234-55-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74234-55-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,2,3 and 4 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 74234-55:
(7*7)+(6*4)+(5*2)+(4*3)+(3*4)+(2*5)+(1*5)=122
122 % 10 = 2
So 74234-55-2 is a valid CAS Registry Number.

74234-55-2Downstream Products

74234-55-2Relevant articles and documents

Phenanthrofuran Derivatives. VI. Some Electrophilic Substitution Reactions and Hydrogenation of 4H-Cyclopentaphenanthrene, Phenanthrofuran, and 4H-Benzocarbazole

Horaguchi, Takaaki,Yamazaki,Reiko,Abe, Teishiro

, p. 494 - 497 (2007/10/02)

Some electrophilic substitution reactions and hydrogenation of 4H-cyclopentaphenanthrene (1a), phenanthrofuran (1b), and 4H-benzocarbazole (1c) have been investigated.The bromination of 1a and 1b with bromine gave the corresponding 8-br

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