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2173992-48-6

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2173992-48-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2173992-48-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 2,1,7,3,9,9 and 2 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 2173992-48:
(9*2)+(8*1)+(7*7)+(6*3)+(5*9)+(4*9)+(3*2)+(2*4)+(1*8)=196
196 % 10 = 6
So 2173992-48-6 is a valid CAS Registry Number.

2173992-48-6Relevant articles and documents

Preparation method of 4,7-diazaspiro[2.5]octane derivative

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, (2018/12/13)

The invention provides a preparation method of 4,7-diazaspiro[2.5]octane derivative. The 4,7-diazaspiro[2.5]octane derivative is prepared by taking 1-aminocyclopropane carboxylate as a starting material. The preparation method has the advantages of simple operation steps, stable process conditions, high controllability, high product yield (the four-step reaction yield of compounds shown as formulas II to I can be up to 70 percent), environmental friendliness and the like, and is suitable for large-scale production.

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