Welcome to LookChem.com Sign In|Join Free

CAS

  • or

921757-65-5

Post Buying Request

921757-65-5 Suppliers

Recommended suppliersmore

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

921757-65-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 921757-65-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,2,1,7,5 and 7 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 921757-65:
(8*9)+(7*2)+(6*1)+(5*7)+(4*5)+(3*7)+(2*6)+(1*5)=185
185 % 10 = 5
So 921757-65-5 is a valid CAS Registry Number.

921757-65-5Relevant articles and documents

Total synthesis of (±)-quadrangularin A

Li, Wenling,Li, Hao,Li, Ying,Hou, Zijie

, p. 7609 - 7611 (2006)

The key to successful coupling in the synthesis of (±)- quadrangularin A (1) was the introduction of tert-butyl groups in the precursor to block two reactive positions. Thus, the oxidative coupling of 3,5-di-(tert-butyl) resveratrol was carried out regioselectively in an efficient total synthesis of the natural product. (Chemical Equation Presented)

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 921757-65-5