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81022-87-9

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81022-87-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81022-87-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,0,2 and 2 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 81022-87:
(7*8)+(6*1)+(5*0)+(4*2)+(3*2)+(2*8)+(1*7)=99
99 % 10 = 9
So 81022-87-9 is a valid CAS Registry Number.

81022-87-9Downstream Products

81022-87-9Relevant articles and documents

HYDRATION AND HYDROGENATION OF ACETYLENIC SIDE-CHAINS AT THE 4- OR 5-POSITION OF ISOXAZOLES

Yamanaka, Hiroshi,Shiraiwa, Masafumi,Sakamoto, Takao,Konno, Shoetsu

, p. 3548 - 3553 (2007/10/02)

Hydration of 5-isoxazolyl-phenyl(or -butyl)acetylenes (1a, b) in dilute sulfuric acid in the presence of mercuric sulfate afforded 5-isoxazolylmethyl phenyl (or butyl) ketones (3a, b), predominantly.In contrast, the hydration of 4-isoxazolyl-phenyl(or -bu

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