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93681-61-9

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93681-61-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 93681-61-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,6,8 and 1 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 93681-61:
(7*9)+(6*3)+(5*6)+(4*8)+(3*1)+(2*6)+(1*1)=159
159 % 10 = 9
So 93681-61-9 is a valid CAS Registry Number.

93681-61-9Relevant articles and documents

Synthesis of 4H-1,4-Benzothiazines via Lithiation Alpha to Sulphur of 2-Acylaminophenyl Alkyl Sulphides, Sulphoxides, and Sulphones

Babudri, Francesco,Florio, Saverio,Vitrani, Anna Maria,Nunno, Leonardo Di

, p. 1899 - 1903 (2007/10/02)

4H-1,4-Benzothiazines, their monoxides, and their dioxides are readily prepared via lithiation and intramolecular cyclisation of 2-acylaminophenyl alkyl sulphides, sulphoxides, and sulphones with lithium di-isopropylamide in tetrahydrofuran at -50 deg C.

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