Welcome to LookChem.com Sign In|Join Free

CAS

  • or

83242-31-3

Post Buying Request

83242-31-3 Suppliers

Recommended suppliersmore

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

83242-31-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83242-31-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,2,4 and 2 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 83242-31:
(7*8)+(6*3)+(5*2)+(4*4)+(3*2)+(2*3)+(1*1)=113
113 % 10 = 3
So 83242-31-3 is a valid CAS Registry Number.

83242-31-3Relevant articles and documents

PENICILLIN-CEPHALOSPORIN CONVERSION IV. DIRECT SYNTHESIS OF 3'-THIOSUBSTITUTED CEPHALOSPORINS FROM THIAZOLE-AZETIDINONES

Torii, Sigeru,Tanaka, Hideo,Sasaoka, Michio,Saitoh, Norio,Siroi, Takashi,Nokami, Junzo

, p. 2495 - 2498 (2007/10/02)

Direct transformation of thiazoline-azetidinones 2, derived from penicillin G and V, into 3'-thio-substituted cephalosporins 4 has been performed by ring opening of the thiazoline moiety with sulfenyl chlorides followed by ring closure with NH3 in dimethy

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 83242-31-3