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21911-78-4

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21911-78-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21911-78-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,9,1 and 1 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 21911-78:
(7*2)+(6*1)+(5*9)+(4*1)+(3*1)+(2*7)+(1*8)=94
94 % 10 = 4
So 21911-78-4 is a valid CAS Registry Number.

21911-78-4Relevant academic research and scientific papers

Cycloadditions of (Arylalkylamino)ketenes with Cycloalkenes

Brady, William T.,Gu, Yi Qi

, p. 2834 - 2838 (1989)

(Arylalkylamino)ketenes were prepared from the corresponding glycine derivatives and underwent in situ cycloadditions with cyclopentadiene, cycloheptene, and cyclooctene to yield only the endo-bicyclocyclobutanones.The cycloheptene and cyclooctene cycload

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