Welcome to LookChem.com Sign In|Join Free

CAS

  • or

117203-21-1

Post Buying Request

117203-21-1 Suppliers

Recommended suppliersmore

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

117203-21-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117203-21-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,2,0 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 117203-21:
(8*1)+(7*1)+(6*7)+(5*2)+(4*0)+(3*3)+(2*2)+(1*1)=81
81 % 10 = 1
So 117203-21-1 is a valid CAS Registry Number.

117203-21-1Relevant articles and documents

Photochemical 2 + 2 Cycloaddition of Arenecarboxylic Acid Esters to Furans and 1,3-Dienes. 2 + 2 Cycloreversion of Oxetanes to Dienol Esters and Ketones

Cantrell, Thomas S.,Allen, Andrew C.,Ziffer, Herman

, p. 140 - 145 (2007/10/02)

Methyl benzoate and other simple arenecarboxylic acid esters have been found to undergo 2 + 2 photochemical cycloaddition at the carbonyl group to furans and certain 1,3-dienes.These additions afford mixtures of oxetanes and their 2 + 2 cycloreversion products: 4-aryl-4-alkoxy-1,3-butadienyl formates and acetates (from furan oxetanes) and dienyl aldehydes and ketones (from cyclic 1,3-dienes).

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 117203-21-1