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81718-51-6

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81718-51-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81718-51-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,7,1 and 8 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 81718-51:
(7*8)+(6*1)+(5*7)+(4*1)+(3*8)+(2*5)+(1*1)=136
136 % 10 = 6
So 81718-51-6 is a valid CAS Registry Number.

81718-51-6Downstream Products

81718-51-6Relevant articles and documents

Reactions of N-Sulfinyl Compounds, XV. - Synthesis of 2-Alkenesulfinic Acid Amides - Structure-Reactivity Relationships for N-Sulfinyl Compounds as Enophiles

Bussas, Reinhard,Kresze, Guenter

, p. 545 - 563 (2007/10/02)

The reactivity of N-sulfinyl compounds R6NSO 2 in ene-reactions shows a large variation depending on the nature of the group R6.Haloalkanesulfonamide derivatives react even with very unreactive alkenes.The scope of this method for the synthesis of sulfinic acid amides and the side reactions are discussed.

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