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79918-29-9

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79918-29-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 79918-29-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,9,1 and 8 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 79918-29:
(7*7)+(6*9)+(5*9)+(4*1)+(3*8)+(2*2)+(1*9)=189
189 % 10 = 9
So 79918-29-9 is a valid CAS Registry Number.

79918-29-9Downstream Products

79918-29-9Relevant articles and documents

Reactions of Spiro

Hirakawa, Kiyoichi,Tanabiki, Yukio

, p. 280 - 284 (1982)

Methylenefluorene 3a adds regiospecifically to aryl azides 4 to give the corresponding spiro 5, which lead to the ring-enlargement products, 9-(arylamino)phenanthrenes (9), by pyrolysis and acid-induced reaction.Benzylidenefluorene 3b

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