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304431-55-8

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304431-55-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 304431-55-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,4,4,3 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 304431-55:
(8*3)+(7*0)+(6*4)+(5*4)+(4*3)+(3*1)+(2*5)+(1*5)=98
98 % 10 = 8
So 304431-55-8 is a valid CAS Registry Number.

304431-55-8Relevant articles and documents

HETEROCYCLIC CARBOXYLIC ACID DERIVATIVES

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Page 11, (2010/01/31)

Compounds or salts thereof represented by the formula (I) wherein R1 represents hydrogen atom, a C1-6 alkyl group, a C1-6 alkenyl group, or an acyl group, R2 and R3 represent hydrogen atom or a C1-6 alkyl group, or adjacent R2 and R3 may combine to form 5- to 7-membered ring, R4 represents hydrogen atom, hydroxyl group, a C1-6 alkoxyl group, a C1-6 alkyl group, HAr represents a heteroaryl-diyl group consisting of a 5-membered or 6-membered ring containing 1 to 3 hetero atoms, R5 represents hydrogen atom or a C1-6 alkyl group. The compounds or the salts thereof have retinoid-like physiological activities or controlling activity on physiological activities of retinoid.

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