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87876-84-4

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87876-84-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87876-84-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,8,7 and 6 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 87876-84:
(7*8)+(6*7)+(5*8)+(4*7)+(3*6)+(2*8)+(1*4)=204
204 % 10 = 4
So 87876-84-4 is a valid CAS Registry Number.

87876-84-4Relevant articles and documents

Improved procedures for the Beckmann rearrangement: The reaction of ketoxime carbonates with boron trifluoride etherate

Anilkumar,Chandrasekhar, Sosale

, p. 5427 - 5429 (2000)

A variety of ketoxime ethyl carbonates-easily prepared from the oximes and ethyl chloroformate-undergo the Beckmann rearrangement upon treatment with 1 equivalent of boron trifluoride etherate, in dichloromethane solution at room temperature in excellent yields (generally 75-99%). (C) 2000 Elsevier Science Ltd.

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