Welcome to LookChem.com Sign In|Join Free

CAS

  • or

221137-11-7

Post Buying Request

221137-11-7 Suppliers

Recommended suppliersmore

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

221137-11-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 221137-11-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,1,3 and 7 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 221137-11:
(8*2)+(7*2)+(6*1)+(5*1)+(4*3)+(3*7)+(2*1)+(1*1)=77
77 % 10 = 7
So 221137-11-7 is a valid CAS Registry Number.

221137-11-7Upstream product

221137-11-7Downstream Products

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 221137-11-7