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1289556-17-7

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1289556-17-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1289556-17-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,9,5,5 and 6 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1289556-17:
(9*1)+(8*2)+(7*8)+(6*9)+(5*5)+(4*5)+(3*6)+(2*1)+(1*7)=207
207 % 10 = 7
So 1289556-17-7 is a valid CAS Registry Number.

1289556-17-7Downstream Products

1289556-17-7Relevant articles and documents

Azepiphthalocyanine-an unprecedented large twist of a π-conjugation system upon core-modification with a seven-membered ring unit

Shimizu, Soji,Zhu, Hua,Kobayashi, Nagao

, p. 3072 - 3074 (2011)

Aromatic dicarbonitrile bearing cyano groups in a 1,4-relationship was utilized for a phthalocyanine synthesis to give azepiphthalocyanine having a seven-membered ring unit instead of a five-membered ring unit. This molecule exhibits a significantly twist

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