Welcome to LookChem.com Sign In|Join Free

CAS

  • or

72458-57-2

Post Buying Request

72458-57-2 Suppliers

Recommended suppliersmore

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

72458-57-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 72458-57-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,4,5 and 8 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 72458-57:
(7*7)+(6*2)+(5*4)+(4*5)+(3*8)+(2*5)+(1*7)=142
142 % 10 = 2
So 72458-57-2 is a valid CAS Registry Number.

72458-57-2Relevant articles and documents

Sulfosilylation of Carbonyl Compounds and Trimethylsilyl Enol Ethers with Trimethylsilyl Chlorosulfonate

Hofmann, Karin,Simchen, Gerhard

, p. 39 - 47 (2007/10/02)

Aldehydes and ketones 3 react with trimethylsilyl chlorosulfonate (1a) to yield trimethylsilyl 2-oxosulfonates 5.The course of this sulfosilylation is discussed briefly.The sulfosilylation of trimethylsilyl carboxylates 7 and trimethylsilyl ketene acetals 14 results in formation of 2-(trimethylsiloxysulfonyl)carboxylates 8 and 15.

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 72458-57-2