Welcome to LookChem.com Sign In|Join Free

CAS

  • or

7640-65-5

Post Buying Request

7640-65-5 Suppliers

Recommended suppliersmore

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

7640-65-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 7640-65-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,6,4 and 0 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 7640-65:
(6*7)+(5*6)+(4*4)+(3*0)+(2*6)+(1*5)=105
105 % 10 = 5
So 7640-65-5 is a valid CAS Registry Number.

7640-65-5Upstream product

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 7640-65-5