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91555-98-5

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91555-98-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91555-98-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,5,5 and 5 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 91555-98:
(7*9)+(6*1)+(5*5)+(4*5)+(3*5)+(2*9)+(1*8)=155
155 % 10 = 5
So 91555-98-5 is a valid CAS Registry Number.

91555-98-5Downstream Products

91555-98-5Relevant articles and documents

Copper-Catalyzed Synthesis of Hindered Ethers from α-Bromo Carbonyl Compounds

Zhou, Zhe,Behnke, Nicole Erin,Kürti, László

supporting information, p. 5452 - 5456 (2018/09/13)

A catalytic method for the synthesis of sterically hindered ethers and thioethers from α-bromo carbonyl compounds and the corresponding nucleophiles using an inexpensive Cu(I) catalytic system is reported. This facile transformation takes place at ambient temperature and does not require the exclusion of air or moisture; thus, it is well-suited for the functionalization and derivatization of complex organic molecules.

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