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4H-[1]Benzothiopyrano[4,3-b]furan,4-ethyl-2,3,3a,9b-tetrahydro-,(3aR,4R,9bS)-rel-(9CI) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

608143-29-9

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608143-29-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 608143-29-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,0,8,1,4 and 3 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 608143-29:
(8*6)+(7*0)+(6*8)+(5*1)+(4*4)+(3*3)+(2*2)+(1*9)=139
139 % 10 = 9
So 608143-29-9 is a valid CAS Registry Number.

608143-29-9Downstream Products

608143-29-9Relevant academic research and scientific papers

A facile and efficient one-pot synthesis of thiochromans from bis(2-formylphenyl) disulfide and alkenols via iodine-promoted generation and subsequent intramolecular cycloaddition of ortho-thiobenzoquinone methides

Saito, Takao,Horikoshi, Takahiro,Otani, Takashi,Matsuda, Yosuke,Karakasa, Takayuki

, p. 6513 - 6517 (2003)

Stereoselective synthesis of tetrahydrofuro- and tetrahydropyrano[3,2-c]benzothiopyrans was achieved by intramolecular [4+2]cycloaddition of o-thiobenzoquinone methides that were generated in situ from bis(2-formylphenyl) disulfide and alkenols in the presence of iodine under mild reaction conditions.

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