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190845-24-0

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190845-24-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 190845-24-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,0,8,4 and 5 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 190845-24:
(8*1)+(7*9)+(6*0)+(5*8)+(4*4)+(3*5)+(2*2)+(1*4)=150
150 % 10 = 0
So 190845-24-0 is a valid CAS Registry Number.

190845-24-0Relevant articles and documents

A new synthesis of substituted acridine-4-carboxylic acids and the anticancer drug N-[2-dimethylamino)ethyl]acridine-4-carboxamide (DACA)

Gamage, Swarna A.,Spicer, Julie A.,Rewcastle, Gordon W.,Denny, William A.

, p. 699 - 702 (2007/10/03)

A new synthesis of substituted acridine-4-carboxylic acids 2 from methyl 2-[N-(2-carboxyphenyl)amino]benzoates (4) is reported, via NaBH4 reduction of the corresponding imidazolides (5), oxidation of the resulting alcohols 6 to aldehyde 7, and cyclisation of these with trifluoroacetic acid to the methyl acridine-4-carboxylates (8), followed by base hydrolysis. Direct amidation of 8a provides a new route to the clinical anticancer drug DACA (3) which avoids use of the irritant acid 2a.

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