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183619-72-9

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183619-72-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 183619-72-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,3,6,1 and 9 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 183619-72:
(8*1)+(7*8)+(6*3)+(5*6)+(4*1)+(3*9)+(2*7)+(1*2)=159
159 % 10 = 9
So 183619-72-9 is a valid CAS Registry Number.

183619-72-9Relevant articles and documents

Chemical transformation from dihydroisocoumarin into benzylidene-phthalide by use of regiospecific oxidative lactonization mediated by copper chloride (H) - Syntheses of thunberginol F and hydramacrophyllol A and B

Yoshikawa,Harada,Yagi,Okuno,Muraoka,Koyama,Murakami

, p. 721 - 723 (1994)

Oxidative lactonization of 2-carboxystilbene mediated by CuCl2 proceeded regiospecifically to give the five-membered lactone. By utilizing this lactonization as a key reaction, chemical transformation from dihydroisocoumarine into benzylideneph

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