Welcome to LookChem.com Sign In|Join Free

CAS

  • or

81193-50-2

Post Buying Request

81193-50-2 Suppliers

Recommended suppliersmore

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

81193-50-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81193-50-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,1,9 and 3 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 81193-50:
(7*8)+(6*1)+(5*1)+(4*9)+(3*3)+(2*5)+(1*0)=122
122 % 10 = 2
So 81193-50-2 is a valid CAS Registry Number.

81193-50-2Downstream Products

81193-50-2Relevant articles and documents

REACTIONS OF STERICALLY HINDERED PHOSPHINES WITH CARBON TETRAHALIDES: P-HALOGENYLIDS

Kolodyazhnyi, O. I.

, p. 2125 - 2137 (2007/10/02)

1.A study has been made of the effects of steric factors on the reactions of tertiary phosphines with carbon tetrahalides.It is found that in the interaction of sterically hindered phosphine with carbon tetrabromide one gets the formation of bromophosphonium tribromomethylid, which exists at a low temperature, this being in an ionic pair containing the anion CBr3-.A sterically hindered phosphine having hydrogen at the α carbon atom forms P-halogenylids on reaction with carbon tetrahalides. 2.Unstabilized P-halogenylids with unsubstituted methylene and alkylidene gr oups have been synthesized, and also P-halogenylids with trimethylsilyl, methyl sulfide, phosphine, acyl, and aromatic groups on the ylid carbon atom. 3.A study has been made of the reactions of P-chlorylids with chlorine-bearing electrophilic reagents , which give rise to new P-halogenylids.

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 81193-50-2