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218444-39-4

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218444-39-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 218444-39-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,8,4,4 and 4 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 218444-39:
(8*2)+(7*1)+(6*8)+(5*4)+(4*4)+(3*4)+(2*3)+(1*9)=134
134 % 10 = 4
So 218444-39-4 is a valid CAS Registry Number.

218444-39-4Downstream Products

218444-39-4Relevant articles and documents

Total synthesis of the 2-arylbenzo[b]furan-containing natural products from Artocarpus

Wu, Deyan,Mei, Hanbing,Tan, Ping,Lu, Weiqiang,Zhu, Jin,Wang, Wei,Huang, Jin,Li, Jian

, p. 4383 - 4387 (2015/06/22)

In this study, 2-arylbenzo[b]furan-containing derivatives moracin C (1) and moracin M (4), the natural products from Artocarpus, have been synthesized in highest overall yield to date (1, 7 steps with an overall yield of 41.9%; 4, 6 steps with an overall yield of 56.3%), and we also report the first total synthesis of artoindonesianin B-1 (2), another member of this family, in the same route (8 steps with an overall yield of 11.3%). This discovery provides a concise route for preparing enough amounts of 1, 2, and 4 as well as 2-arylbenzo[b]furan-containing natural product-like analogs (71-74) to explore the biological potential.

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