for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Store at 2-8°C Ships Wet ice Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 7 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
2,2-Di(4-tert-octylphenyl)-1-picrylhydrazyl (DPPH) is classified as a “stable” free radical since it has a long shelf life and can be synthesized and stored under normal laboratory conditions.
| Pubchem Sid | 504768135 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/504768135 |
| Canonical Smiles | CC(C)(C)CC(C)(C)C1=CC=C(C=C1)N(C2=CC=C(C=C2)C(C)(C)CC(C)(C)C)[N]C3=C(C=C(C=C3[N+](=O)[O-])[N+](=O)[O-])[N+](=O)[O-] |
| InChIKey | CLOCMRDQPYXVKP-UHFFFAOYSA-N |
| INCHI | 1S/C34H44N5O6/c1-31(2,3)21-33(7,8)23-11-15-25(16-12-23)36(26-17-13-24(14-18-26)34(9,10)22-32(4,5)6)35-30-28(38(42)43)19-27(37(40)41)20-29(30)39(44)45/h11-20H,21-22H2,1-10H3 |
| Isomeric SMILES | CC(C)(C)CC(C)(C)C1=CC=C(C=C1)N(C2=CC=C(C=C2)C(C)(C)CC(C)(C)C)[N]C3=C(C=C(C=C3[N+](=O)[O-])[N+](=O)[O-])[N+](=O)[O-] |
| WGK Germany | 3 |
| Molecular Weight | 618.74 |
| Reaxy-Rn | 15561557 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=15561557&ln= |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
 C2627341 | Certificate of Analysis | Feb 28, 2026 | D195243 |
| B2628469 | Certificate of Analysis | Feb 07, 2026 | D195243 |
| K2228170 | Certificate of Analysis | Sep 08, 2025 | D195243 |
| E2514309 | Certificate of Analysis | Apr 01, 2025 | D195243 |
| E2514305 | Certificate of Analysis | Mar 28, 2025 | D195243 |
| E2514307 | Certificate of Analysis | Mar 28, 2025 | D195243 |
| E2514308 | Certificate of Analysis | Mar 26, 2025 | D195243 |
| E2514306 | Certificate of Analysis | Mar 26, 2025 | D195243 |
| E2514310 | Certificate of Analysis | Mar 25, 2025 | D195243 |
| E2514311 | Certificate of Analysis | Mar 25, 2025 | D195243 |
| A2416340 | Certificate of Analysis | Jul 02, 2024 | D195243 |
| G2416316 | Certificate of Analysis | Jul 01, 2024 | D195243 |
| L2325210 | Certificate of Analysis | Dec 07, 2023 | D195243 |
| L2325211 | Certificate of Analysis | Dec 07, 2023 | D195243 |
| K2201347 | Certificate of Analysis | Oct 12, 2022 | D195243 |
| G2226558 | Certificate of Analysis | Jul 07, 2022 | D195243 |
| G2226557 | Certificate of Analysis | Jul 07, 2022 | D195243 |
| Melt Point(°C) | 171℃ |
|---|
| 1. Xin Wang, Lei Zhao, Jinshuang Hu, Hua Wei, Xiaoyang Liu, Enshou Li, Shenghong Yang. (2022) Rational design of novel carbon-oxygen quantum dots for ratiometrically mapping pH and reactive oxygen species scavenging. CARBON, [PMID:] [10.1016/j.carbon.2022.01.006] |
| 2. Jing Cui, Dan Fang, Xinquan Tian, Jun Peng, Di Chen, Shuangjiao Xu, Lei Ma. (2023) Sustainable conversion of cottonseed hulls to valuable proanthocyanidins through ultrasound-assisted deep eutectic solvent extraction. ULTRASONICS SONOCHEMISTRY, [PMID:37742421] [10.1016/j.ultsonch.2023.106605] |
| 3. Huitong Luo, Zetao Wang, Zhichao He, Zemin Ling, Hao Wang, Jiayi Zhu, Jingjun Nie, Dafu Chen, Qi Feng, Xiaodong Cao. (2023) Injectable chondroitin sulfate-grafted self-antioxidant hydrogels ameliorate nucleus pulposus degeneration against overactive inflammation. Biomaterials Science, 11 (10): (3629-3644). [PMID:37010367] [10.1039/D3BM00359K] |
| 4. Fuyu Song, Yue Kong, Changyou Shao, Yi Cheng, Jie Lu, Yehan Tao, Jian Du, Haisong Wang. (2021) Chitosan-based multifunctional flexible hemostatic bio-hydrogel. Acta Biomaterialia, [PMID:34610476] [10.1016/j.actbio.2021.09.056] |
| 5. Xiaochen Zhang, Jiahong Jian, Zisheng Luo, Guo Li, Yifeng Huang, Yue Wu, Dong Li, Li Li. (2024) Fabrication of edible nanocellulose chitosan bi-component film based on a novel “swell-permeate” approach. CARBOHYDRATE POLYMERS, [PMID:39245500] [10.1016/j.carbpol.2024.122632] |
| 6. Huang Lin, Wang Wantao, Liu Lei, Ma Wenzheng, Fan Jinghao, Zhou Dan, Zhao Lei, Zheng Zhaomin, Liu Hongmei, Wu Decheng. (2025) Injectable chitosan microspheres resisting inflammatory and oxidative stress for ameliorating intervertebral disc degeneration. Science China-Materials, [PMID:] [10.1007/s40843-024-3153-8] |
| 7. Baogang Zhou, Haibao Tang, Ran Liu, Chengfei Huang, Sarengaowa, Wenzhong Hu. (2025) Application of Mulberry (Morus nigra) Anthocyanin Extract Combined with Carboxymethyl Chitosan for Postharvest Preservation of Strawberry (Fragaria x ananassa). CURRENT ISSUES IN MOLECULAR BIOLOGY, 47 (12): (995). [PMID:41614759] [10.3390/cimb47120995] |
