Welcome to LookChem.com Sign In|Join Free
  • or
Z-Val-O-o-nitrophenylester, also known as Z-Val-ONp, is a synthetic chemical compound commonly used as a substrate in enzymatic assays to study the activity of proteases, particularly serine proteases. It consists of a valine residue (Val) in the Z configuration, which refers to the geometric arrangement of the molecule, linked to an o-nitrophenyl ester group. The o-nitrophenyl ester serves as a chromophore, allowing for the detection of enzyme activity through a color change upon hydrolysis. This substrate is particularly useful for monitoring the activity of enzymes like trypsin and chymotrypsin, which cleave the peptide bond between the valine and the o-nitrophenyl ester, releasing the o-nitrophenol and causing a shift in absorbance that can be measured spectrophotometrically.

49689-78-3

Post Buying Request

49689-78-3 Suppliers

Recommended suppliers

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

49689-78-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 49689-78-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,9,6,8 and 9 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 49689-78:
(7*4)+(6*9)+(5*6)+(4*8)+(3*9)+(2*7)+(1*8)=193
193 % 10 = 3
So 49689-78-3 is a valid CAS Registry Number.
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 Customer Service

What can I do for you?
Get Best Price

Get Best Price for 49689-78-3