Welcome to LookChem.com Sign In|Join Free

CAS

  • or

380-57-4

Post Buying Request

380-57-4 Suppliers

Recommended suppliersmore

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

380-57-4 Usage

General Description

1,4-Dibromo-2-chloro-1,1,2-trifluoropentane is a chemical compound with the molecular formula C5H7Br2ClF3. It is a colorless, volatile liquid that is primarily used as a refrigerant and a blowing agent in the production of foam insulation. 1,4-DIBROMO-2-CHLORO-1,1,2-TRIFLUOROPENTANE is also used in the manufacture of pharmaceuticals and agrochemicals. 1,4-Dibromo-2-chloro-1,1,2-trifluoropentane is known to be harmful if inhaled or ingested, and it can cause irritation to the skin and eyes. It is important to handle this compound with care and follow proper safety guidelines when working with it.

Check Digit Verification of cas no

The CAS Registry Mumber 380-57-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 3,8 and 0 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 380-57:
(5*3)+(4*8)+(3*0)+(2*5)+(1*7)=64
64 % 10 = 4
So 380-57-4 is a valid CAS Registry Number.

380-57-4Relevant articles and documents

1-Vinyl-1,2,2,3,3-pentafluorocyclopropane: An extraordinarily rapid vinylcyclopropane rearrangement

Smart, Bruce E,Krusic, Paul J,Roe, D.Christopher,Yang, Zhen-Yu

, p. 199 - 205 (2007/10/03)

The synthesis of 1-vinyl-1,2,2,3,3-pentafluorocyclopropane (1) and the kinetics of its thermal, unimolecular rearrangement to 1,4,4,5,5-pentafluorocyclopentene (2) are reported. Kinetic data were obtained by gas-phase 19FNMR at 80-120 °C, and the activation parameters for the rearrangement of 1 to 2 are: ΔG?(100 °C) = 28.7 kcal/mol, ΔH? = 26.7 kcal/mol, and ΔS? = -5.5 eu (log A = 12.7, Ea = 28.4 kcal/mol). Vinyl(pentafluorocyclopropane) (1) with a half-life of only 38 min at 110 °C, is one of the most thermally labile vinylcyclopropanes known. The isomeric E- and Z-1-propenyl-1,2,2,3,3-pentafluorocyclopropanes (3) similarly have relatively low activation parameters: ΔG?(E) ? 28.5 kcal/mol and ΔG?(Z) ? 31.1 kcal/mol. A favorable, polar biradical transition state for rearrangement is proposed to account the exceptional reactivity of these alkenyl pentafluorocyclopropanes.

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 380-57-4