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155550-31-5

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155550-31-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 155550-31-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,5,5 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 155550-31:
(8*1)+(7*5)+(6*5)+(5*5)+(4*5)+(3*0)+(2*3)+(1*1)=125
125 % 10 = 5
So 155550-31-5 is a valid CAS Registry Number.

155550-31-5Upstream product

155550-31-5Downstream Products

155550-31-5Relevant articles and documents

3-(7'-oxo-1'-aza-4'-oxabicyclo[3.2.0]-hept-3'-YL)propionic acid derivative as antitumor agent

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, (2008/06/13)

A derivative of 3-(7'-oxo-1'-aza-4'-oxabicyclo[3.2.0 ]hept-3'-yl)propionic acid represented by the formula STR1 wherein R1 is a hydrogen atom, a lower alkyl group optionally having one or more cycloalkyl groups, a lower acyl group, a benzoyl group optionally having one or more substituents or a benzyl group optionally having one or more substituents, R2 is a hydrogen atom or a carboxyl-protecting group, R3 is a hydroxyl group, an azido group, a benzenesulfonyloxy group optionally having one or more substituents, a lower alkylsulfonyloxy group optionally having one or more substituents, a tri-substituted silyloxy group or an amino group optionally having one or more substituents, provided that when R1 and R2 are hydrogen atoms, R3 is not an amino group, and a salt thereof.

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