γ-DNP-L-2,4-DAB, also known as γ-Dinitrophenyl-L-2,4-Diaminobutyric acid, is a chemical compound that serves as a substrate for the enzyme diaminobutyric acid transaminase. This enzyme plays a crucial role in the metabolism of amino acids, particularly in the conversion of diaminobutyric acid to succinic semialdehyde. The γ-DNP-L-2,4-DAB compound is often used in biochemical research to study the activity and properties of this enzyme, as well as in the development of assays to measure its activity. It is a yellow crystalline solid that is sensitive to light and should be stored in a cool, dark place to maintain its stability.
The CAS Registry Mumber 74509-70-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,5,0 and 9 respectively; the second part has 2 digits, 7 and 0 respectively. Calculate Digit Verification of CAS Registry Number 74509-70: (7*7)+(6*4)+(5*5)+(4*0)+(3*9)+(2*7)+(1*0)=139 139 % 10 = 9 So 74509-70-9 is a valid CAS Registry Number.