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446021-68-7

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446021-68-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 446021-68-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,6,0,2 and 1 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 446021-68:
(8*4)+(7*4)+(6*6)+(5*0)+(4*2)+(3*1)+(2*6)+(1*8)=127
127 % 10 = 7
So 446021-68-7 is a valid CAS Registry Number.

446021-68-7Relevant articles and documents

Practical and highly stereoselective technology for preparation of enantiopure sulfoxides and sulfinamides utilizing activated and functionally differentiated N-sulfonyl-1,2,3-oxathiazolidine-2-oxide derivatives

Han, Zhengxu,Krishnamurthy, Dhileepkumar,Grover, Paul,Fang, Q. Kevin,Su, Xiping,Wilkinson, H. Scott,Lu, Zhi-Hui,Magiera, Daniel,Senanayake, Chris H.

, p. 6386 - 6408 (2007/10/03)

A simple, general, and practical technology to prepare enantiopure 1,2,3-oxathiazolidine-2-oxide derivatives using chiral aryl N-sulfonyl aminoalcohol derivatives and thionyl chloride is reported. The versatility of these novel chiral building blocks (MIOO and TMPOO), was exemplified by the expedient production of a variety of unique chiral sulfoxides and valuable chiral sulfinamides in excellent yields and enantiopurities.

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