Welcome to LookChem.com Sign In|Join Free

CAS

  • or

87694-35-7

Post Buying Request

87694-35-7 Suppliers

Recommended suppliersmore

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

87694-35-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87694-35-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,6,9 and 4 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 87694-35:
(7*8)+(6*7)+(5*6)+(4*9)+(3*4)+(2*3)+(1*5)=187
187 % 10 = 7
So 87694-35-7 is a valid CAS Registry Number.

87694-35-7Downstream Products

87694-35-7Relevant articles and documents

Sulfur Compounds in Crude Oil, III - Dihydrodiindenothiophenes

Boberg, Friedrich,Czogalla, Claus-Detlef,Torges, Karl-Franz,Wentrup, Gerhard-Juergen

, p. 1598 - 1607 (2007/10/02)

Syntheses to the dihydrodiindenothiophenes 1 - 3 have been studied. 1-3 were prepared by thermolysis of 8H-indeno-1,2,3-thiadiazole (10) or 4H-indeno-1,2,3-thiadiazole (13) or by reduction of the corresponding diketones 17, 19, and 21 which were obtained by thermolysis of indeno-1,2,3-thiadiazol-8-one (16) or from 2,3-dichloroinden-1-one (23) with Na2S.Mechanisms with analogous intermediates explain the formation of the indenothiophenes. - Another synthesis of indenothiophene-10,11-dione (21) starts from 2,5-diphenyl-3,4-thiophenedicarboxylic acid (29). - 10,11-Dihydrodiindenothiophene (3) is the known sulfurization product of hydrindene, the structure of 3 is corrected.

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 87694-35-7