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1305321-48-5

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1305321-48-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1305321-48-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,5,3,2 and 1 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1305321-48:
(9*1)+(8*3)+(7*0)+(6*5)+(5*3)+(4*2)+(3*1)+(2*4)+(1*8)=105
105 % 10 = 5
So 1305321-48-5 is a valid CAS Registry Number.

1305321-48-5Relevant articles and documents

N-methyl-N-phenyl-5-oxa-1-azaspiro[2.5]oct-1-en-2-amine - Synthesis and reactions of a synthon for AN UNKNOWN α-AMINO ACID

Loepfe, Michael,Linden, Anthony,Heimgartner, Heinz

experimental part, p. 1267 - 1282 (2011/05/14)

The synthesis of the heterospirocyclic amino azirine N-methyl-N-phenyl-5- oxa-1-azaspiro[2.5]oct-1-en-2-amine (6a) was achieved from 3,4-dihydro-2H-pyrane (7) via N-methyl-N-phenyltetrahydropyran-3-thiocarboxamide (11). The reactions of 6a with thiobenzoic acid and Z-Phe-OH, respectively, leading to the corresponding 3-benzoylaminotetrahydropyran-3-thiocarboxamide (13) and the diastereoisomeric dipeptide amides (14), respectively, demonstrate that 6a is a valuable synthon for the hitherto unknown 3-aminotetrahydropyrane-3-carboxylic acid. The structure of 13 was established by X-Ray crystallography. The Japan Institute of Heterocyclic Chemistry.

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