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111651-31-1

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111651-31-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 111651-31-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,6,5 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 111651-31:
(8*1)+(7*1)+(6*1)+(5*6)+(4*5)+(3*1)+(2*3)+(1*1)=81
81 % 10 = 1
So 111651-31-1 is a valid CAS Registry Number.

111651-31-1Relevant articles and documents

SYNTHESIS AND CONFORMATIONS OF 2,3:4,5- AND 2,4:3,5-DI-O-ISOPROPYLIDENE-D-MANNITOL

Gawronska, Krystyna

, p. 79 - 86 (1988)

The 2,3:4,5- (8) and 2,4:3,5-di-O-isopropylidene (10) derivatives of D-mannitol have been prepared from 1,6-di-O-benzoyl-D-mannitol and their structures established by (13)C-n.m.r. spectroscopy.The 1,3-dioxane rings in 10 adopt a skew conformation and the sugar carbon chain in 8 is bent around the C-3-C-4 bond, as found by i.r. data and molecular mechanics calculations.Oxidation of 8 with pyridinium dichromate gave 2,3:4,5-di-O-isopropylidene-D-mannono-1,6-lactone (12).

An iterative acetylene-epoxide coupling strategy for the total synthesis of longimicin C

He, Yan-Tao,Xue, Song,Hu, Tai-Shan,Yao, Zhu-Jun

, p. 5393 - 5397 (2007/10/03)

Longimicin C, a naturally occurring annonaceous acetogenin possessing a C2-symmetrical bis-THF moiety and a short hydrocarbon chain between its THF-containing region and a terminal γ-lactone, was synthesized for the first time. The total synthe

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