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1620084-69-6

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1620084-69-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1620084-69-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,0,0,8 and 4 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1620084-69:
(9*1)+(8*6)+(7*2)+(6*0)+(5*0)+(4*8)+(3*4)+(2*6)+(1*9)=136
136 % 10 = 6
So 1620084-69-6 is a valid CAS Registry Number.

1620084-69-6Relevant articles and documents

Cut and sew: Benzofuran-ring-opening enabled cyclopentenone ring formation

Wang, Kai,Jiang, Chenghao,Zhang, Zhenming,Han, Chunyu,Wang, Xuewei,Li, Yaping,Chen, Kaiting,Zhao, Junfeng

supporting information, p. 12817 - 12820 (2020/11/02)

A facile approach to the fully substituted cyclopentenones involving an unprecedented benzofuran-ring-opening is described. The cleavage of a benzofuran endocyclic C2-O bond proceeded smoothly in the absence of any transition metal catalyst or highly reactive organometallic reagent. Such benzofuran-ring-opening is delicately incorporated into an acid-catalyzed cascade process, orchestrating a novel synthetic strategy for complex cyclopentenones with excellent yields and diastereoselectivities. This journal is

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