Welcome to LookChem.com Sign In|Join Free

CAS

  • or

193687-91-1

Post Buying Request

193687-91-1 Suppliers

Recommended suppliersmore

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

193687-91-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 193687-91-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,3,6,8 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 193687-91:
(8*1)+(7*9)+(6*3)+(5*6)+(4*8)+(3*7)+(2*9)+(1*1)=191
191 % 10 = 1
So 193687-91-1 is a valid CAS Registry Number.

193687-91-1Relevant articles and documents

Chromenes and chromanones. Part IV.1 The Birch reduction of 2,2-dimethyl-4-chromanone and its 7-substituted analogues

Aniol, Miroslaw

, p. 1069 - 1079 (2007/10/03)

2,2-Dimethyl-4-chromanone (1a), 2,2,7-trimethyl-4-chromanone (1b) and 7-methoxy-2,2-dimethyl-4-chromanone (1c) have been reduced by sodium or lithium in liquid ammonia with the presence or without of proton donor. The bicyclic or phenolic products were obtained. Products with reduced benzene ring only were also observed. The possible mechanisms of reductions are considered.

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 193687-91-1