2,2-diphenyl-1-picrylhydrazyl
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2,2-diphenyl-1-picrylhydrazyl 속성
- 녹는점
- ~135 °C (dec.)(lit.)
- 밀도
- 1.484 g/cm3
- 저장 조건
- 2-8°C
- 용해도
- 아세토니트릴(약간 용해됨), 클로로포름(약간 용해됨), DMSO(약간 용해됨)
- 물리적 상태
- 고체
- 물리적 상태
- 단단한 모양
- 색상
- 녹색
- 수용성
- 디메틸 포름아미드, 에탄올, 클로로포름, 에테르, 이황화탄소, 아세톤, 오일, 사염화탄소, 빙초산 및 톨루엔에 용해됩니다. 물에 불용성.
- 최대 파장(λmax)
- 515nm(MeOH)(lit.)
- Merck
- 14,3330
- BRN
- 1846081
- 안정성
- 충격에 민감함
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
위험품 표기 | Xn | ||
---|---|---|---|
위험 카페고리 넘버 | 42/43 | ||
안전지침서 | 22-36/37-45 | ||
유엔번호(UN No.) | UN2811 | ||
WGK 독일 | 1 | ||
RTECS 번호 | MW3250000 | ||
TSCA | Yes | ||
위험 등급 | 6.1 | ||
포장분류 | II | ||
HS 번호 | 29280000 |
2,2-diphenyl-1-picrylhydrazyl C화학적 특성, 용도, 생산
화학적 성질
DPPH is a common abbreviation for the organic chemical compound 2,2-diphenyl-1-picrylhydrazyl. It is a dark-colored crystalline powder composed of stable free radical molecules. DPPH has two major applications, both in laboratory research: one is a monitor of chemical reactions involving radicals, most notably it is a common antioxidant assay, and another is a standard of the position and intensity of electron paramagnetic resonance signals.물리적 성질
DPPH has several crystalline forms which differ by the lattice symmetry and melting point. The commercial powder is a mixture of phases which melts at ~130 °C. DPPH-I (m.p. 106 °C) is orthorhombic, DPPH-II (m.p. 137 °C) is amorphous and DPPH-III (m.p. 128–129 °C) is triclinic.일반 설명
2,2-diphenyl-1-picrylhydrazyl is a free radical, which shows hydrogen acceptor ability towards antioxidants. It has a strong absorbance at 517 nm. When the radical is lost in exchange for a proton, the absorbance at 517 nm decreases proportionately, resulting in a color change from purple to yellow. Hence, it is commonly used in DPPH assay for measuring the antioxidant activity of different natural samples such as wine, fruits, herbal tea etc.Safety
This picrylhydrazyl derivative, also known as DPPH free radical, presents as a black crystalline powder. Store in a refrigerator - this substance is heat sensitive. 1,1-Diphenyl-2-picrylhydrazyl Free Radical is incompatible with oxidizing agents, strong bases and halogens. This chemical is harmful if swallowed. It may cause allergy or asthma symptoms or breathing difficulties if inhaled and an allergic reaction on the skin.참고 문헌
[1] SIDDARTHA BALIYAN. Determination of Antioxidants by DPPH Radical Scavenging Activity and Quantitative Phytochemical Analysis of Ficus religiosa.[J]. Molecules, 2022. DOI:10.3390/molecules27041326.[2] G. CLARKE. High Correlation of 2,2-diphenyl-1-picrylhydrazyl (DPPH) Radical Scavenging, Ferric Reducing Activity Potential and Total Phenolics Content Indicates Redundancy in Use of All Three Assays to Screen for Antioxidant Activity of Extracts of Plants from the Malaysian Rainforest[C]//2 1. 2013: 1-10. DOI:10.3390/antiox2010001.
[3] IKUO NAKANISHI Yoshimi S. Electrochemical redox behavior of 2,2-diphenyl-1-picrylhydrazyl radical solubilized by β-cyclodextrin in water[J]. Electrochemistry Communications, 2022, 134: Article 107190. DOI:10.1016/j.elecom.2021.107190.
[4] JAMES BYH BEHRENDORFF. 2,2-Diphenyl-1-picrylhydrazyl as a screening tool for recombinant monoterpene biosynthesis.[J]. Microbial Cell Factories, 2013, 12: 76. DOI:10.1186/1475-2859-12-76.
[5] J. XIE K. M S. Re-evaluation of the 2,2-Diphenyl-1-picrylhydrazyl Free Radical (DPPH) Assay for Antioxidant Activity[J]. Journal of Agricultural and Food Chemistry, 2014, 62 19: 4251-4260. DOI:10.1021/jf500180u.
2,2-diphenyl-1-picrylhydrazyl 준비 용품 및 원자재
원자재
피크린산
질소
에틸알코올
포스포러스옥시클로라이드
클로로포름
아질산 나트륨
디에틸에테르
벤젠
중탄산나트륨(중조)
이산화티오요소
디페닐아민
아세트산(빙초산)
메틸알콜
수산화나트륨
피리딘
황산마그네슘
산화납(Ⅳ)
석유 에테르
준비 용품
2,2-diphenyl-1-picrylhydrazyl 공급 업체
글로벌( 253)공급 업체
공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
---|---|---|---|---|---|
Nanjing Duly Biotech Co.,Ltd | +undefined18013301590 |
melody@njduly.com | China | 2452 | 58 |
Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21667 | 55 |
ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 |
ivan@atkchemical.com | China | 32836 | 60 |
Accela ChemBio Inc. | +1-858-6993322 |
info@accelachem.com | United States | 19536 | 58 |
Jurong Coupling Biotechnology Co., Ltd. | 13656108824 |
coupling278191416@hotmail.com | CHINA | 184 | 58 |
career henan chemical co | +86-0371-86658258 +8613203830695 |
factory@coreychem.com | China | 29823 | 58 |
Shaanxi Dideu Medichem Co. Ltd | +86-29-87569266 15319487004 |
1015@dideu.com | China | 4088 | 58 |
TargetMol Chemicals Inc. | +1-781-999-5354 +1-00000000000 |
marketing@targetmol.com | United States | 19892 | 58 |
Hubei Ipure Biology Co., Ltd | +8613367258412 |
ada@ipurechemical.com | China | 10326 | 58 |
Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 |
sales@tnjchem.com | China | 34571 | 58 |
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