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4-(4-chloro-2-methyl-8,9-dihydro-7H-cyclopenta[5',6']pyrido[3',2':4,5]thieno[3,2-d]pyrimidin-10-yl)phenyl methyl ether is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

667886-68-2

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667886-68-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 667886-68-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,7,8,8 and 6 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 667886-68:
(8*6)+(7*6)+(6*7)+(5*8)+(4*8)+(3*6)+(2*6)+(1*8)=242
242 % 10 = 2
So 667886-68-2 is a valid CAS Registry Number.

667886-68-2Relevant academic research and scientific papers

Synthesis and reactions of some new heterocyclic compounds containing cycloalka[e]thieno[2,3-b]pyridine Moiety

Al-Sehemi, Abdullah G.,Bakhite, Etify A.

, p. 975 - 985 (2007/10/03)

Hydrolysis of ethyl 3-amino-4-aryl-cycloalka[e]thieno[2,3-b]pyridine-2- carboxylates (3a-d) gave the corresponding o-aminocarboxylic acids 4 a-d. Heating the latter compounds (4a-d) with acetic an hydride furnished the oxazinone derivatives 5a-d which, in

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