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120686-09-1

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120686-09-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 120686-09-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,0,6,8 and 6 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 120686-09:
(8*1)+(7*2)+(6*0)+(5*6)+(4*8)+(3*6)+(2*0)+(1*9)=111
111 % 10 = 1
So 120686-09-1 is a valid CAS Registry Number.

120686-09-1Relevant articles and documents

Synthesis method of 2-methoxy-7,8-dihydroquinoline-6(5H)-ketone

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Paragraph 0034-0036, (2018/03/26)

The invention relates to the technical field of chemical synthesis processes of tetrahydroquinoline derivatives, in particular to a synthesis method of 2-methoxy-7,8-dihydroquinoline-6(5H)-ketone. Inthe method, 1,4-cyclohexanedione monoethylene glycol is

Reversible acetylcholinesterase inhibitor huperzine-A synthesis method

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, (2017/02/23)

The present invention discloses a reversible acetylcholinesterase inhibitor huperzine-A synthesis method, wherein the route is defined in the specification. The method of the present invention has advantages of easily-available raw materials, simple operation, high yield, low cost, high purity of the final product, easy quality control and the like, and is suitable for industrial production.

Target-oriented multifunctional organocatalysis for enantioselective synthesis of bicyclo[3.3.1]nona-2,6-dien-9-ones. A formal asymmetric synthesis of huperzine A

Ding, Xiao-Hua,Li, Xiang,Liu, Dan,Cui, Wei-Chen,Ju, Xuan,Wang, Shaozhong,Yao, Zhu-Jun

experimental part, p. 6240 - 6248 (2012/08/28)

A target-oriented highly enantioselective multifunctional organocatalytic approach has been developed to construct the bicycle-[3.3.1]nona-2,6-dien-9-one core of (-)-huperzine A for the first time, with up to 95% ee in the gram-scale procedure. The newly established methodology is also eligible to synthesize a variety of bicyclo[3.3.1]nona-2,6-dien-9-ones in high enantiopurities, and thus is useful for the future development of novel huperzine A analogs with medicinal interests.

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