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1254175-16-0

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1254175-16-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1254175-16-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,4,1,7 and 5 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1254175-16:
(9*1)+(8*2)+(7*5)+(6*4)+(5*1)+(4*7)+(3*5)+(2*1)+(1*6)=140
140 % 10 = 0
So 1254175-16-0 is a valid CAS Registry Number.

1254175-16-0Downstream Products

1254175-16-0Relevant articles and documents

Facile synthesis of [1]benzothieno[3,2-b]benzothiophene from o-dihalostilbenes

Saito, Masahiko,Yamamoto, Tatsuya,Osaka, Itaru,Miyazaki, Eigo,Takimiya, Kazuo,Kuwabara, Hirokazu,Ikeda, Masaaki

scheme or table, p. 5277 - 5280 (2010/11/03)

A convenient one-pot synthesis of [1]benzothieno[3,2-b]benzothiophene from readily available o-dihalostilbenes using combined reagents of sodium sulfide nonahydrate (Na2S·9H2O) or sodium hydrosulfide hydrate (NaSH·nH2O) and sulfur is described along with plausible reaction paths in this intriguing reaction.

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