Welcome to LookChem.com Sign In|Join Free

CAS

  • or

887250-23-9

Post Buying Request

887250-23-9 Suppliers

Recommended suppliersmore

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

887250-23-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 887250-23-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,8,7,2,5 and 0 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 887250-23:
(8*8)+(7*8)+(6*7)+(5*2)+(4*5)+(3*0)+(2*2)+(1*3)=199
199 % 10 = 9
So 887250-23-9 is a valid CAS Registry Number.

887250-23-9Relevant articles and documents

Five-membered 2,3-dioxo heterocycles: L. Synthesis and thermolysis of 3-aroyl- and 3-hetaroyl-5-phenyl-1,2,4,5-tetrahydropyrrolo[1,2-a]quinoxalin-1,2, 4-triones

Bozdyreva,Smirnova,Maslivets

, p. 1081 - 1088 (2007/10/03)

(Z)-3-Phenacylidene- and (Z)-3-hetaroylmethylidene-1-phenyl-1,2,3,4- tetrahydroquinoxalin-2-ones react with oxalyl chloride to give 3-acyl-5-phenyl-1,2,4,5-tetrahydropyrrolo[1,2-a]quinoxaline-1,2,4-triones. Thermolysis of the latter generates acyl(3-oxo-4

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 887250-23-9