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102599-25-7

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102599-25-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 102599-25-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,2,5,9 and 9 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 102599-25:
(8*1)+(7*0)+(6*2)+(5*5)+(4*9)+(3*9)+(2*2)+(1*5)=117
117 % 10 = 7
So 102599-25-7 is a valid CAS Registry Number.

102599-25-7Downstream Products

102599-25-7Relevant articles and documents

Formation of Tetraacetal Oxa-Cages and Convex Oxa-Cages Ozonolysis of Bicyclooctenes

Lin, Chu-Chung,Wu, Hsien-Jen

, p. 815 - 820 (2007/10/03)

Tetraacetal oxa-cage compounds 5a and 5b and convex oxa-cage compounds 7a and 8a are synthesized in a short sequence.Ozonolysis of endo adducts 2a and 2b in dichloromethane at -78 deg C followed by reduction with dimethylsulfide gave tetraacetal oxa-cages 5a and 5b in 35percent yields respectively.Ozonolysis of 2a in dichloromethane at -78 deg C followed by treatment with triethylamine gave the convex oxa-cage 7a in 34percent yield.These results support an acid-base proton transfer between the final ozonides and the base.The reasons that these oxa-cage compounds formed in low yields are discussed.The synthesis of tetraacetal oxacage 14, possessing aromatic substitutents directly on the skeleton of the oxa-cage, is accomplished.Key Words: Tetraacetal oxa-cages; Convex oxa-cages; Ozonolysis; Bicyclooctenes.

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