Welcome to LookChem.com Sign In|Join Free

CAS

  • or

1004269-50-4

Post Buying Request

1004269-50-4 Suppliers

Recommended suppliersmore

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

1004269-50-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1004269-50-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,0,4,2,6 and 9 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1004269-50:
(9*1)+(8*0)+(7*0)+(6*4)+(5*2)+(4*6)+(3*9)+(2*5)+(1*0)=104
104 % 10 = 4
So 1004269-50-4 is a valid CAS Registry Number.

1004269-50-4Relevant articles and documents

Synthesis of oligo(ethylene glycol) toward 44-mer

Ahmed, Saleh A.,Tanaka, Mutsuo

, p. 9884 - 9886 (2006)

A synthetic method for oligo(ethylene glycol) toward 44-mer (FW = 1956.35) is described. Reiteration of Williamson's ether synthesis and hydrogenation to remove protecting benzyl group affords desired oligo(ethylene glycol) toward 44-mer in moderate yields. The advantages in this method are use of commercially easily available materials as starting materials and procedures avoiding difficulty in purification of the products as much as possible.

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 1004269-50-4