Welcome to LookChem.com Sign In|Join Free

CAS

  • or

23181-40-0

Post Buying Request

23181-40-0 Suppliers

Recommended suppliersmore

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

23181-40-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 23181-40-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,1,8 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 23181-40:
(7*2)+(6*3)+(5*1)+(4*8)+(3*1)+(2*4)+(1*0)=80
80 % 10 = 0
So 23181-40-0 is a valid CAS Registry Number.

23181-40-0Relevant articles and documents

Microwaves assisted Gabriel synthesis of phthalides

Lacova, Margita,Chovancova, Jarmila,Veverkova, Eva,Toma, Stefan

, p. 14995 - 15006 (2007/10/03)

Cesium acetate was found to be the best catalyst for the synthesis of 3-benzylidephthalide from phthalic anhydride and phenylacetic acid. Reasonable to good yields of different 3-arylmethylenephthalides were isolated from the microwave. Gabriel synthesis, even when phenylthio- and 2-(3-)thienyl- acetic acids were used as the starting material.

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 23181-40-0