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170118-13-5

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170118-13-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 170118-13-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,0,1,1 and 8 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 170118-13:
(8*1)+(7*7)+(6*0)+(5*1)+(4*1)+(3*8)+(2*1)+(1*3)=95
95 % 10 = 5
So 170118-13-5 is a valid CAS Registry Number.

170118-13-5Downstream Products

170118-13-5Relevant articles and documents

BF3-Catalyzed Reaction of Cyclobutene-1,2-dione Monoacetal and Its Vinylog with Allylsilanes. Regioselective Synthesis of 4-Allyl-4-ethoxycyclobutenones from Squaric Acid and Their Conversion to Bi-and Tricycloalkanones

Yamamoto, Yoshihiko,Ohno, Masatomi,Eguchi, Shoji

, p. 525 - 526 (1995)

Regioselective allylation of 2,4- and 4,4-diethoxycyclobuteones was performed with allylsilanes in the presence of BF3*Et2O via a common ethoxycarbenium ion intermediate.A merit of this reaction was demonstrated in an efficient conversion of the obtained

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