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93351-44-1

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93351-44-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 93351-44-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,3,5 and 1 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 93351-44:
(7*9)+(6*3)+(5*3)+(4*5)+(3*1)+(2*4)+(1*4)=131
131 % 10 = 1
So 93351-44-1 is a valid CAS Registry Number.

93351-44-1Relevant articles and documents

Enantioselective Construction of Chiral 2,3-cis-Dimethyldihydrobenzofuran with an All-Carbon Quaternary Center: An Efficient Approach to (+)/(-)-PI-220 and (+)-3-epi-Furaquinocin C

Pu, Liu-Yang,Chen, Ji-Qiang,Li, Mao-Lin,Li, Yao,Xie, Jian-Hua,Zhou, Qi-Lin

, p. 1229 - 1240 (2016)

A new strategy for the enantioselective construction of chiral 2,3-cis-dimethyldihydrobenzofurans has been developed by a ruthenium-catalyzed asymmetric hydrogenation of racemic α-aryloxybutanone via dynamic kinetic resolution (DKR), combined with a palladium-catalyzed intramolecular reductive Heck cyclization. Starting from optically active 2,3-cis-dimethyldihydrobenzofuran, the natural products (+)/(-)-PI-220 and (+)-3-epi-furaquinocin C were synthesized in high yields.

Dihydrothienopsoralens: New furocoumarins as potential photoreacting agents

Zoubir,Refouvelet,Aubin,Humbert,Xicluna

, p. 509 - 513 (2007/10/03)

A series of new dihydrothienopsoralen derivatives were synthesized from 6-hydroxybenzo[b]furan in four steps in good yield. These compounds were prepared as potential photosensitizing and chemotherapeutic agents for psoriasis. The spectroscopy study in al

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