α,α-Diphenyl-β-(2,4,6-tricyanophenyl)-hydrazyl, also known as DPPH, is a stable, purple-colored, nitrogen-centered free radical commonly used in scientific research as a reagent to measure the antioxidant activity of various compounds. It is characterized by its chemical structure, which includes two phenyl rings attached to a hydrazine group, with a 2,4,6-tricyanophenyl group as a substituent. DPPH is widely employed in the evaluation of antioxidant capacity in food, pharmaceutical, and cosmetic industries, as well as in the study of various biological systems. The reduction of DPPH radicals to the corresponding hydrazine by antioxidants results in a decolorization of the solution, which can be quantified spectrophotometrically, providing a measure of the antioxidant potency of the tested substances.
18998-44-2
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Basic information
- Product Name: α,α-Diphenyl-β-(2,4,6-tricyanophenyl)-hydrazyl
- Synonyms:
- CAS NO:18998-44-2
- Molecular Formula:
- Molecular Weight: 334.36
- EINECS: N/A
- Product Categories: N/A
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Chemical Properties
- Melting Point: N/A
- Boiling Point: N/A
- Flash Point: N/A
- Appearance: N/A
- Density: N/A
- Refractive Index: N/A
- Storage Temp.: N/A
- Solubility: N/A
- CAS DataBase Reference: α,α-Diphenyl-β-(2,4,6-tricyanophenyl)-hydrazyl(CAS DataBase Reference)
- NIST Chemistry Reference: α,α-Diphenyl-β-(2,4,6-tricyanophenyl)-hydrazyl(18998-44-2)
- EPA Substance Registry System: α,α-Diphenyl-β-(2,4,6-tricyanophenyl)-hydrazyl(18998-44-2)
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Safety Data
- Hazard Codes: N/A
- Statements: N/A
- Safety Statements: N/A
- WGK Germany:
- RTECS:
- HazardClass: N/A
- PackingGroup: N/A
- Hazardous Substances Data: 18998-44-2(Hazardous Substances Data)
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Check Digit Verification of cas no
The CAS Registry Mumber 18998-44-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,9,9 and 8 respectively; the second part has 2 digits, 4 and 4 respectively.Calculate Digit Verification of CAS Registry Number 18998-44:
(7*1)+(6*8)+(5*9)+(4*9)+(3*8)+(2*4)+(1*4)=172
172 % 10 = 2
So 18998-44-2 is a valid CAS Registry Number.
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α,α-Diphenyl-β-(2,4,6-tricyanophenyl)-hydrazyl
