Welcome to LookChem.com Sign In|Join Free

CAS

  • or

74997-40-3

Post Buying Request

74997-40-3 Suppliers

Recommended suppliersmore

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

74997-40-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74997-40-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,9,9 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 74997-40:
(7*7)+(6*4)+(5*9)+(4*9)+(3*7)+(2*4)+(1*0)=183
183 % 10 = 3
So 74997-40-3 is a valid CAS Registry Number.

74997-40-3Downstream Products

74997-40-3Relevant articles and documents

Synthesis of Steroidal 17β-Carboxamide Derivatives

Formstecher, P.,Lustenberger, P.,Dautrevaux, M.

, p. 265 - 272 (1980)

Several 17β-carboxamide derivatives of natural and fluorinated glucocorticoids have been synthesized.The 17β-carboxylic derivatives were obtained by periodic acid oxidation of their side chains.They were then activated by N-hydroxybenzotriazole (HOBT) and coupled to several primary amines.Using this method eleven 17β-carboxamide derivatives have been prepared in good yields.

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 74997-40-3