Welcome to LookChem.com Sign In|Join Free

CAS

  • or

1219537-19-5

Post Buying Request

1219537-19-5 Suppliers

Recommended suppliersmore

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

1219537-19-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1219537-19-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,9,5,3 and 7 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1219537-19:
(9*1)+(8*2)+(7*1)+(6*9)+(5*5)+(4*3)+(3*7)+(2*1)+(1*9)=155
155 % 10 = 5
So 1219537-19-5 is a valid CAS Registry Number.

1219537-19-5Downstream Products

1219537-19-5Relevant articles and documents

One-pot regioselective vinylation of tetrazoles: preparation of 5-substituted 2-vinyl-2H-tetrazoles

Roh, Jaroslav,Vávrová, Kate?ina,Hrabálek, Alexandr

experimental part, p. 1411 - 1414 (2010/04/25)

The one-pot regioselective preparation of 5-aryl/alkyl-2-vinyl-2H-tetrazoles from 5-substituted tetrazoles via a very simple procedure using 1,2-dibromoethane and triethylamine without the need of any catalyst is described. The mechanism of this reaction is also discussed.

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 1219537-19-5