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128039-26-9

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128039-26-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128039-26-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,0,3 and 9 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 128039-26:
(8*1)+(7*2)+(6*8)+(5*0)+(4*3)+(3*9)+(2*2)+(1*6)=119
119 % 10 = 9
So 128039-26-9 is a valid CAS Registry Number.

128039-26-9Relevant articles and documents

Hypervalent iodine compound containing heterocyclic ring as well as preparation method and application thereof

-

Paragraph 0190; 0191; 0192, (2019/01/08)

The invention discloses a hypervalent iodine compound containing a heterocyclic ring as well as a preparation method and application thereof. A structure of the compound is shown as a formula (I): theformula (I) is shown in the description, wherein R is selected from hydrogen, halogen, alkyl, alkoxy, halogenated alkyl, halogenated alkoxy, nitryl, cyano, hydroxyl or -COOR'; R' is alkyl or halogenated alkyl; and Het is substituted or non-substituted 1,4-benzopyranone, substituted or non-substituted quinolone, substituted or non-substituted isoquinoline, substituted or non-substituted thiobenzopyranone, substituted or non-substituted coumarin and substituted or non-substituted oxepin. The compound disclosed by the invention is novel in structure and is the hypervalent iodine compound containing the heterocyclic ring; the hypervalent iodine compound is stable in structure and simple in preparation method; and meanwhile, the hypervalent iodine compound has a very good inhibition effect onML-1 and MOLM-13 cells and has an extremely great application prospect on prevention and/or treatment effect on leukemia.

Electrophile-induced Intramolecular Cyclization of ortho-(Aryloxy)phenylalkynes to Dibenzoxepines

Kitamura, Tsugio,Takachi, Tatsuya,Kawasato, Hironobu,Taniguchi, Hiroshi

, p. 1969 - 1974 (2007/10/02)

Reaction of o-(aryloxy)phenylalkynes with electrophiles such as perchloric acid, tetrafluoroboric acid, benzenesulfenyl chloride, and iodine monochloride yielded dibenzoxepine derivatives.Cyclization to the dibenzoxepines competed with 1,2-addit

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