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54016-16-9

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54016-16-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 54016-16-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,0,1 and 6 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 54016-16:
(7*5)+(6*4)+(5*0)+(4*1)+(3*6)+(2*1)+(1*6)=89
89 % 10 = 9
So 54016-16-9 is a valid CAS Registry Number.

54016-16-9Downstream Products

54016-16-9Relevant articles and documents

Reaction of α-halo ketone with 2-aminothiol: a new synthesis of thiazolidines with the oxo group migrated to the original position occupied by halogen atom

Matsushita, Masatoshi,Takahashi, T. Tomoyoshi,Utsukihara, Takamitsu,Shimizu, Yohei,Jansen, Rob J.,Horiuchi, C. Akira

, p. 8932 - 8938 (2007)

The reaction of 2-bromo-3-oxo steroids with 2-aminoethanethiol led to the stereoselective formation of spiro[steroid-3,2′-thiazolidin]-2-ones as the major product. With both cyclic and acyclic α-halo alkanones, the reaction gave the thiazolidines with the oxo group migrated to the original position occupied by the halogen atom. In addition, it was found that the use of microwaves affords improvement of?yields and shortening the reaction time in comparison with usual conditions.

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