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244304-94-7

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244304-94-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 244304-94-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,4,3,0 and 4 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 244304-94:
(8*2)+(7*4)+(6*4)+(5*3)+(4*0)+(3*4)+(2*9)+(1*4)=117
117 % 10 = 7
So 244304-94-7 is a valid CAS Registry Number.

244304-94-7Relevant articles and documents

Copper-catalyzed cyclization of steroidal acylaminoacetylenes: Syntheses of novel 11β-Aryl-17,17-spiro[(4′H,5′-methylene)oxazol]- substituted steroids

Chunyang, Jin,Burgess, Jason P.,Kepler, John A.,Cook, C. Edgar

, p. 1887 - 1890 (2008/02/05)

A variety of novel 11β-aryl-17,17-spiro[(4′H,5′-methylene) oxazol]-substituted steroids have been synthesized in moderate to good yields via copper-catalyzed cyclization of acylaminoacetylenes. The best result was obtained with a catalytic amount of Cul i

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