Welcome to LookChem.com Sign In|Join Free

CAS

  • or

138038-92-3

Post Buying Request

138038-92-3 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

138038-92-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138038-92-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,0,3 and 8 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 138038-92:
(8*1)+(7*3)+(6*8)+(5*0)+(4*3)+(3*8)+(2*9)+(1*2)=133
133 % 10 = 3
So 138038-92-3 is a valid CAS Registry Number.

138038-92-3Relevant articles and documents

Transition metal mediated synthesis of some prenylated phytoalexins of Morus alba Linn.

Mann,Widdowson,Clough

, p. 7991 - 8000 (1991)

Directed functionalisation of resorcinol and benzofuran rings was achieved by activation with a coordinated tricarbonylchromium(O) unit and vicinal or remote lithiation directed by methoxy or t-butyldiphenylsilyloxy groups respectively. The process was applied either before [to the geranylbenzofuran (16) for mulberrofuran B (5)] or after [for moracin C (2)] palladium catalysed coupling of the 2-stannylated benzofuran and the 5-iodinated resorcinol moieties. In addition moracin I (14) was synthesised by a Stille coupling of the stannylated benzofuran (6) with the phloroglucinol triflate (14). Application to the synthesis of albafuran A (3) gave, unexpectedly, the 3-geranylbenzofuran (11).

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 138038-92-3