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111437-45-7

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111437-45-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 111437-45-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,4,3 and 7 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 111437-45:
(8*1)+(7*1)+(6*1)+(5*4)+(4*3)+(3*7)+(2*4)+(1*5)=87
87 % 10 = 7
So 111437-45-7 is a valid CAS Registry Number.

111437-45-7Downstream Products

111437-45-7Relevant articles and documents

Improved General Method of Ortho Alkylation of Phenols Using Alkyl Isopropyl Sulfide, Sulfuryl Chloride and Triethylamine. An Expedient Synthesis of Representative Oxygen Heterocycles and (2R,4'R,8'R)-α-Tocopherol

Inoue, Seiichi,Ikeda, Hiroshi,Sato, Shuichi,Horie, Kiyohiro,Ota, Tomomi,et al.

, p. 5495 - 5497 (1987)

Functionalized alkyl groups have been introduced regioselectively into the ortho position of phenols via sigmatropic rearrangement of isopropylphenoxysulfonium alkylide, providing a quite efficient synthesis of precursors for chromans, chromens, coumarins, and d-α-tocopherol.

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