Welcome to LookChem.com Sign In|Join Free

CAS

  • or

131203-41-3

Post Buying Request

131203-41-3 Suppliers

Recommended suppliersmore

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

131203-41-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131203-41-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,2,0 and 3 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 131203-41:
(8*1)+(7*3)+(6*1)+(5*2)+(4*0)+(3*3)+(2*4)+(1*1)=63
63 % 10 = 3
So 131203-41-3 is a valid CAS Registry Number.

131203-41-3Relevant articles and documents

Solvent effect on regioselectivity of epoxide ring opening in styrene oxide by O- and N-nucleophiles in neutral and basic media

Krylov,Mokhammed, A. Kh.,Yegorova,Borisova,Borisova,Flid

, p. 1128 - 1132 (2013/07/26)

The results of ring opening in styrene oxide by alcohols, amines, amino alcohols, and diamines were generalized. On low polarizing ability of the solvent, the main direction of the process is the formation of normal α-substituted products. The solvent effect on regioselectivity of the reaction was studied for N,N-diethylethylenediamine. The ratio of products correlates well with the value of dielectric constant for mixed aqueous-organic solvents and with the parameters of polarity E T and AN for neat solvents.

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 131203-41-3