Welcome to LookChem.com Sign In|Join Free

CAS

  • or

4857-76-5

Post Buying Request

4857-76-5 Suppliers

Recommended suppliersmore

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

4857-76-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4857-76-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,8,5 and 7 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 4857-76:
(6*4)+(5*8)+(4*5)+(3*7)+(2*7)+(1*6)=125
125 % 10 = 5
So 4857-76-5 is a valid CAS Registry Number.

4857-76-5Relevant articles and documents

FORMATION OF PYRYLIUM SALTS IN THE ACYLATION OF STERICALLY HINDERED QUINONES

Ukhin, L. Yu.,Dolgopolova, N. A.,Morkovnik, Z. S.,Kuz'mina, L. G.,Struchkov, Yu. T.

, p. 364 - 368 (2007/10/02)

The reaction of 3,5-di-tert-butyl-o-benzoquinone and 2,6-di-tert-butyl-p-benzoquinone with solutions of 70percent HClO4 in acetic and propionic anhydrides and with boron trifluoride etherate in acetic anhydride leads to the formation of pyrylium salts in high 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 4857-76-5