Welcome to LookChem.com Sign In|Join Free

CAS

  • or

419569-93-0

Post Buying Request

419569-93-0 Suppliers

Recommended suppliersmore

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

419569-93-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 419569-93-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,1,9,5,6 and 9 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 419569-93:
(8*4)+(7*1)+(6*9)+(5*5)+(4*6)+(3*9)+(2*9)+(1*3)=190
190 % 10 = 0
So 419569-93-0 is a valid CAS Registry Number.

419569-93-0Relevant articles and documents

Aromatization of 1,6,7,7a-tetrahydro-2H-indol-2-ones by a novel process. Preparation of key-intermediate methyl 1-benzyl-5-methoxy-1H-indole-3-acetate and the syntheses of serotonin, melatonin, and bufotenin

Revial, Gilbert,Jabin, Ivan,Lim, Sethy,Pfau, Michel

, p. 2252 - 2256 (2002)

Imine 7 of 1,4-cyclohexanedione mono-ethylene ketal 6 was reacted with maleic anhydride, affording the cyclized adduct 8. Methyl esterification of 8, accompanied by transacetalization, led to the dihydrooxindole derivative 10. Aromatization of 10 was then accomplished with POCl3, leading directly to the key-intermediate title compound 11 in 74% yield from ketone 6. Serotonin, melatonin, and bufotenin were then obtained by standard reactions.

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 419569-93-0