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672917-13-4

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672917-13-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 672917-13-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,2,9,1 and 7 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 672917-13:
(8*6)+(7*7)+(6*2)+(5*9)+(4*1)+(3*7)+(2*1)+(1*3)=184
184 % 10 = 4
So 672917-13-4 is a valid CAS Registry Number.

672917-13-4Relevant articles and documents

Conversion of diacetyl-C-(β-D-glucopyranosyl)phloroglucinol to spiroketal compounds

Sato, Shingo,Kumazawa, Toshihiro,Watanabe, Ko-Ichi,Matsuba, Shigeru,Onodera, Jun-Ichi

, p. 429 - 433 (2007/10/03)

Diacetyl-C-(β-D-glucopyranosyl)phloroglucinol was converted by refluxing in water to spiro(benzofuran-[2H]furan) a new compound, along with spiro(benzofuran-[2H]pyran). The stereochemistry of the quaternary carbon of both spiro compounds had an S-configuration.

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