Welcome to LookChem.com Sign In|Join Free

CAS

  • or

149838-77-7

Post Buying Request

149838-77-7 Suppliers

Recommended suppliersmore

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

149838-77-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 149838-77-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,9,8,3 and 8 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 149838-77:
(8*1)+(7*4)+(6*9)+(5*8)+(4*3)+(3*8)+(2*7)+(1*7)=187
187 % 10 = 7
So 149838-77-7 is a valid CAS Registry Number.

149838-77-7Downstream Products

149838-77-7Relevant articles and documents

Tetraphenylphosphonium bromide-catalyzed 'Halex' fluorination of chloroaryl sulfonyl chlorides

Suzuki, Hiroshi,Kageyama, Hiroyuki,Yoshida, Yasuo,Kimura, Yoshikazu

, p. 335 - 337 (2007/10/02)

Halogen-exchange of chloroaryl sulfonylchloride derivatives with spray-dried potassium fluoride was found to proceed efficiently by employing tetraphenylphosphonium bromide as a catalyst.Subsequent desulfonylation of the fluoroaryl sulfonyl derivatives readily afforded fluoroaromatics under acidic condition.

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 149838-77-7