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5-Benzenesulfonyl-4-methyl-5-(3-methyl-but-2-enyl)-5H-furan-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

125557-12-2

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125557-12-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 125557-12-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,5,5,5 and 7 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 125557-12:
(8*1)+(7*2)+(6*5)+(5*5)+(4*5)+(3*7)+(2*1)+(1*2)=122
122 % 10 = 2
So 125557-12-2 is a valid CAS Registry Number.

125557-12-2Downstream Products

125557-12-2Relevant academic research and scientific papers

Synthesis of 3-Methyl-4-substituted Butenolides Using Regioselective Reaction of Phenylsulfonylbutenolide

Yoda, Hidemi,Shirakawa, Koji,Takabe, Kunihiko

, p. 1391 - 1392 (2007/10/02)

The anion of 4-phenylsulfonylbutenolide generated by deprotonation with lithium diisopropylamide reacted with a variety of electrophilic reagents regioselectively to afford 4-alkylated compounds, which were desulfurized in good yields to 4-substituted but

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