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134618-72-7

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134618-72-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134618-72-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,6,1 and 8 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 134618-72:
(8*1)+(7*3)+(6*4)+(5*6)+(4*1)+(3*8)+(2*7)+(1*2)=127
127 % 10 = 7
So 134618-72-7 is a valid CAS Registry Number.

134618-72-7Relevant articles and documents

6-Demethyl-6-halo- and 6-Demethyl-6-thiomitomycins: Synthesis of Novel Mitomycin Derivatives Involving a Tandem Michael Addition/Retro-Mannich Reaction Sequence

Arai, Hitoshi,Kasai, Masaji

, p. 1087 - 1094 (2007/10/02)

Synthesis of novel 6-demethyl-6-halomitomycins (3, 4, 6, and 7) and 6-demethyl-6-thiomytomycins (5 and 8) is described from key intermediates, namely, 6-demethyl-7,7-(ethylenedioxy)-6,6-dihalo-6,7-dihydromitosanes (18 and 19) and 6-demethyl-7,7-(ethylenedioxy)-6,7-dihydro-6-thiomitosane (20), respectively.Compounds 18-20 were prepared through a tandem Michael addition and a retro-Mannich reaction sequence (N-halosucinimide or cationic arylsulfenyl species in the presence of Et2NH) on 10.

An unusual replacement of a methylene moiety by a phenylseleno group. Synthesis of mitomycin C labelled at c-6 by 13CH3 and C2H3

Kasai,Arai,Kanda

, p. 600 - 601 (2007/10/02)

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