Cas 108120-72-5,1,2-dimethyl-4-(methoxycarbonyl)-3-phenylpyrazolidine

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Check Digit Verification of cas no

The CAS Registry Mumber 108120-72-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,1,2 and 0 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 108120-72:
(8*1)+(7*0)+(6*8)+(5*1)+(4*2)+(3*0)+(2*7)+(1*2)=85
85 % 10 = 5
So 108120-72-5 is a valid CAS Registry Number.

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108120-72-5Relevant articles and documents

Reaction of Aldehydes with Hydrazine Hydrochlorides in the Presence of Dipolarophiles; Intra- and Intermolecular + + 2> Cycloadditions

Shimizu, Tomio,Hayashi, Yoshiyuki,Miki, Masayuki,Teramura, Kazuhiro

, p. 2277 - 2285 (2007/10/02)

The reaction of 2 molar equiv of several 2-(alkenyloxy)-1-naphthaldehydes (2) with hydrazine dihydrochloride (3) and subsequent treatment of the mixture with triethylamine lead to intramolecular + + 2> criss-cross cycloadducts 5, 2:1 molar pr

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108120-72-5