Welcome to LookChem.com Sign In|Join Free

CAS

  • or

98735-19-4

Post Buying Request

98735-19-4 Suppliers

Recommended suppliersmore

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

98735-19-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 98735-19-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,7,3 and 5 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 98735-19:
(7*9)+(6*8)+(5*7)+(4*3)+(3*5)+(2*1)+(1*9)=184
184 % 10 = 4
So 98735-19-4 is a valid CAS Registry Number.

98735-19-4Upstream product

98735-19-4Downstream Products

98735-19-4Relevant articles and documents

Reconstruction of Ring A of 3,4-Dinor-2,5-seco Steroids

Boar, Robin B.,Patel, Arvind C.

, p. 1201 - 1204 (2007/10/02)

Methods for the reconversion of 3,4-dinor-2,5-seco steroids into the parent 4-en-3-one systems are discussed.In an efficient route, reaction of 17β-acetoxy-5,5-ethylenedioxy-3,4-dinor-2,5-secoandrostan-2-al with ethoxyvinyl-lithium led to the corresponding 2ξ-hydroxy-3-one.Acetylation followed by treatment with zinc dust in acetic acid then gave testosterone acetate.A similar series of reactions was performed in the progesterone series.

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 98735-19-4