Welcome to LookChem.com Sign In|Join Free

CAS

  • or

434942-25-3

Post Buying Request

434942-25-3 Suppliers

Recommended suppliersmore

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

434942-25-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 434942-25-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,4,9,4 and 2 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 434942-25:
(8*4)+(7*3)+(6*4)+(5*9)+(4*4)+(3*2)+(2*2)+(1*5)=153
153 % 10 = 3
So 434942-25-3 is a valid CAS Registry Number.

434942-25-3Downstream Products

434942-25-3Relevant articles and documents

Synthesis of bioactive heterocycles: Thermal [3,3] sigmatropic rearrangement of 4-(4′-aryloxybut-2-ynyloxy)-6-methyl-2-pyrones

Majumdar,Ghosh,Kundu

, p. 753 - 758 (2002)

Synthesis of a number of hitherto unreported 4-aryloxy-methylene-7-methyl-2,3-dihydropyrano[3,2-c]pyran-5-ones (4a-e) have been achieved in moderate yields by the thermal [3,3] sigmatropic rearrangement of 4-(4′-aryloxybut-2′-ynyloxy)-6-methylpyran-2-ones (3a-e).

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 434942-25-3