Welcome to LookChem.com Sign In|Join Free

CAS

  • or

1638642-77-9

Post Buying Request

1638642-77-9 Suppliers

Recommended suppliersmore

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

1638642-77-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1638642-77-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,3,8,6,4 and 2 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1638642-77:
(9*1)+(8*6)+(7*3)+(6*8)+(5*6)+(4*4)+(3*2)+(2*7)+(1*7)=199
199 % 10 = 9
So 1638642-77-9 is a valid CAS Registry Number.

1638642-77-9Downstream Products

1638642-77-9Relevant articles and documents

Organocatalytic oxidative annulation of benzamide derivatives with alkynes

Manna, Srimanta,Antonchick, Andrey P.

, p. 7324 - 7327 (2014)

Organocatalytic annulation by functionalization of benzamide derivatives with alkynes has been developed. We report a new approach of cycloaddition under mild reaction conditions using simple catalysts, such as iodobenzene and peracetic acid, as oxidant. Those novel, mild reaction conditions provided a straightforward synthesis of isoquinolones with fast reaction rate. Notable selectivity in annulation of unsymmetrically disubstituted alkynes was demonstrated.

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 1638642-77-9