Welcome to LookChem.com Sign In|Join Free

CAS

  • or

87996-94-9

Post Buying Request

87996-94-9 Suppliers

Recommended suppliersmore

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

87996-94-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87996-94-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,9,9 and 6 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 87996-94:
(7*8)+(6*7)+(5*9)+(4*9)+(3*6)+(2*9)+(1*4)=219
219 % 10 = 9
So 87996-94-9 is a valid CAS Registry Number.

87996-94-9Relevant articles and documents

AN EFFICIENT SYNTHESIS OF 2-SUBSTITUTED-THIO-6-HYDROXYETHYL-PENEM-3-CARBOXYLIC ACIDS VIA 2-THIOXOPENAMS

Leanza, W. J.,DiNinno, Frank,Muthard, David A.,Wilkening, R. R.,Wildonger, Kenneth J.,et al.

, p. 2505 - 2513 (2007/10/02)

Allyl and p-nitrobenzyl (5R,6S)-6-((R)-1-(t-butyldimethylsilyloxy)ethyl)-2-thioxopenam-3-carboxylates (19) were synthesized by base mediated cyclization of the corresponding 1-carboxylmethyl-4-phenoxy(thiocarbonyl)thio-2-azetidinones (16).The thioxopenams underwent alkylation and Michael reactions to produce 2-alkylthio- and 2-alkenylthio-penem derivatives 20 and 21.

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 87996-94-9