Welcome to LookChem.com Sign In|Join Free

CAS

  • or

1385789-80-9

Post Buying Request

1385789-80-9 Suppliers

Recommended suppliersmore

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

1385789-80-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1385789-80-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,8,5,7,8 and 9 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1385789-80:
(9*1)+(8*3)+(7*8)+(6*5)+(5*7)+(4*8)+(3*9)+(2*8)+(1*0)=229
229 % 10 = 9
So 1385789-80-9 is a valid CAS Registry Number.

1385789-80-9Relevant articles and documents

Turn-on colorimetric sensing of fluoride ions by a cationic triarylborane bearing benzothiazolium

Song, Ki Cheol,Lee, Kang Mun,Kim, Hyungjun,Lee, Yoon Sup,Lee, Min Hyung,Do, Youngkyu

, p. 89 - 95 (2012)

A cationic triarylborane Lewis acid bearing benzothiazolium moiety, 2-(4′-dimesitylborylphenyl)-3-methylbenzo[d]thiazol-3-ium ([2] +) was prepared from a neutral borane (2a) and their crystal structures were determined from X-ray diffraction studies. While 2a shows a blue-shift with a small decrease in the UV-vis absorption band upon fluoride binding to the boron atom, [2]+ undergoes a red-shift of the absorption band which tails over visible region, giving rise to the color change of the solution from colorless to yellow. The fluoride binding constant in THF/H2O (9/1, v/v) is calculated to be 1.3 × 104 M-1 that is much greater than that of a neutral borane 2a (K = 4.2 × 102 M-1). DFT calculation results suggest that the absorption process in the fluoroborate (2F) is involved with π(Mes)→π*(phenylbenzothiazolium) intramolecular charge transfer and the greater elevation of the π(Mes) donor level is responsible for the turn-on colorimetric response of [2]+.

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 1385789-80-9