Determine the necessary mass, volume, or concentration for preparing a solution.
Biological stain Biological Stain for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Room temperature Ships Normal 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 16 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
All kinds of mixtures formed by oxidation of methylene blue, mainly azure A and B, are blue in aqueous solution, slightly soluble in ethanol and show reddish-brown fluorescence, and are used for biological dyeing.
| Canonical Smiles | CNC1=CC2=C(C=C1)N=C3C=CC(=[N+](C)C)C=C3S2.[Cl-] |
|---|---|
| IUPAC Name | dimethyl-[7-(methylamino)phenothiazin-3-ylidene]azanium;chloride |
| InChIKey | DNDJEIWCTMMZBX-UHFFFAOYSA-N |
| INCHI | 1S/C15H15N3S.ClH/c1-16-10-4-6-12-14(8-10)19-15-9-11(18(2)3)5-7-13(15)17-12;/h4-9H,1-3H3;1H |
| Isomeric SMILES | CNC1=CC2=C(C=C1)N=C3C=CC(=[N+](C)C)C=C3S2.[Cl-] |
| WGK Germany | 3 |
| RTECS | SO5550000 |
| Molecular Weight | 305.83 |
| Beilstein | 3922630 |
| Reaxy-Rn | 3922630 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=3922630&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 →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Organoheterocyclic compounds |
| Class | Benzothiazines |
| Subclass | Not available |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Benzothiazines |
| Alternative Parents | Secondary alkylarylamines Benzenoids Secondary ketimines Heteroaromatic compounds Azacyclic compounds Organopnictogen compounds Organic chloride salts Hydrocarbon derivatives |
| Molecular Framework | Aromatic heteropolycyclic compounds |
| Substituents | Benzothiazine - Secondary aliphatic/aromatic amine - Benzenoid - Heteroaromatic compound - Secondary ketimine - Azacycle - Secondary amine - Organic nitrogen compound - Organopnictogen compound - Hydrocarbon derivative - Organic chloride salt - Organic salt - Organonitrogen compound - Amine - Aromatic heteropolycyclic compound |
| Description | This compound belongs to the class of organic compounds known as benzothiazines. These are organic compounds containing a benzene fused to a thiazine ring (a six-membered ring with four carbon atoms, one nitrogen atom and one sulfur atom). |
| External Descriptors | Not available |
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
| Certificate of Analysis | Oct 13, 2025 | A278781 | |
| Certificate of Analysis | Oct 13, 2025 | A278781 | |
| Certificate of Analysis | Oct 13, 2025 | A278781 | |
| Certificate of Analysis | Jun 13, 2025 | A278781 | |
| Certificate of Analysis | Jun 13, 2025 | A278781 | |
| Certificate of Analysis | Jun 13, 2025 | A278781 | |
| Certificate of Analysis | Jun 13, 2025 | A278781 | |
| Certificate of Analysis | Jun 13, 2025 | A278781 | |
| Certificate of Analysis | Dec 05, 2024 | A278781 | |
| Certificate of Analysis | Dec 05, 2024 | A278781 | |
| Certificate of Analysis | Nov 03, 2022 | A278781 | |
| Certificate of Analysis | Nov 03, 2022 | A278781 | |
| Certificate of Analysis | Nov 03, 2022 | A278781 | |
| Certificate of Analysis | Nov 03, 2022 | A278781 | |
| Certificate of Analysis | Mar 30, 2021 | A278781 | |
| Certificate of Analysis | Mar 30, 2021 | A278781 | |
| Certificate of Analysis | Mar 30, 2021 | A278781 |
| Solubility | Soluble in 1 mg/ml water. Sparingly soluble in alcohol. |
|---|---|
| Sensitivity | Moisture sensitive. |
| Melt Point(°C) | 205 °C |
| Molecular Weight | 305.800 g/mol |
| XLogP3 | |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 1 |
| Exact Mass | 305.075 Da |
| Monoisotopic Mass | 305.075 Da |
| Topological Polar Surface Area | 52.700 Ų |
| Heavy Atom Count | 20 |
| Formal Charge | 0 |
| Complexity | 498.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 2 |
| 1. Ze-Lin Qiu, Wen-Han Yu, Wu-Shang Yang, Tong Sun, Zi-Hao Zhao, Qian-Wei Su, Bao-Ku Zhu. (2023) Ionic Hyperbranched Poly(amido-amine)-Incorporated Nanofiltration Membranes for High-Efficiency Dye Desalination. LANGMUIR, [PMID:38154048] [10.1021/acs.langmuir.3c03119] |
| 2. Mao Xu, Qi Tang, Yuchen Liu, Jiaqi Shi, Weiyu Zhang, Chan Guo, Qiuwen Liu, Weiwei Lei, Cheng Chen. (2023) Charged Boron Nitride Nanosheet Membranes for Improved Organic Solvent Nanofiltration. ACS Applied Materials & Interfaces, [PMID:36820819] [10.1021/acsami.2c20893] |
| 3. Guitu Wang, Jingyu Lu, Chuanjie Fang, Wenzhang Fang, Xinsheng Peng, Hongbo Zeng, Liping Zhu. (2022) Ultrathin metal–organic framework nanosheets as building blocks of lamellar nanofilms for ultrafast molecular sieving. Nanoscale, 14 (47): (17670-17680). [PMID:36416307] [10.1039/D2NR05229F] |
| 4. Hukang Guo, Xiaoyi Xu, Jiaqi Li, Weilin Feng, Mengxiao Zhang, Chuanjie Fang, Liping Zhu. (2022) Chemically tailored microporous nanocomposite membranes with multi-channels for intensified solvent permeation. JOURNAL OF MEMBRANE SCIENCE, [PMID:] [10.1016/j.memsci.2022.120877] |
| 5. Weilin Feng, Jiaqi Li, Chuanjie Fang, Lin Zhang, Liping Zhu. (2021) Controllable thermal annealing of polyimide membranes for highly-precise organic solvent nanofiltration. JOURNAL OF MEMBRANE SCIENCE, [PMID:] [10.1016/j.memsci.2021.120013] |
| 6. Yang Jin, Cao Yan, Zhang Naidong. (2020) Color-mixing effects of photosensitive organic dyes initiated by superoxide anion radicals under visible-light irradiation. Environmental Chemistry Letters, 18 (6): (2127-2132). [PMID:] [10.1007/s10311-020-01043-4] |
| 7. Hua Shu, Guoning Chen, Lu Wang, Xia Cui, Qun Wang, Wen Li, Chun Chang, Qi Guo, Zhimin Luo, Qiang Fu. (2020) Adenine-coated magnetic multiwalled carbon nanotubes for the selective extraction of aristolochic acids based on multiple interactions. JOURNAL OF CHROMATOGRAPHY A, [PMID:32823094] [10.1016/j.chroma.2020.461382] |
| 8. Jin Yang, Yan Cao, Naidong Zhang. (2020) Spectrophotometric method for superoxide anion radical detection in a visible light (400–780 nm) system. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, [PMID:32502811] [10.1016/j.saa.2020.118556] |
| 9. Jiaqi Li, Mengxiao Zhang, Weilin Feng, Liping Zhu, Lin Zhang. (2020) PIM-1 pore-filled thin film composite membranes for tunable organic solvent nanofiltration. JOURNAL OF MEMBRANE SCIENCE, [PMID:] [10.1016/j.memsci.2020.117951] |
| 10. Ming-Yong Zhou, Li-Feng Fang, Chuang-Chao Sun, Chun-Er Lin, Bao-Ku Zhu, Jiang-Hua Chen. (2018) Pore size tailoring from ultrafiltration to nanofiltration with PVC-g-PDMA via rapid immersion thermal annealing. JOURNAL OF MEMBRANE SCIENCE, [PMID:] [10.1016/j.memsci.2018.10.060] |
| 11. Zhang Pei-Bin, Tang An-Qi, Wang Zhang-Hui, Lu Jing-Yu, Zhu Bao-Ku, Zhu Li-Ping. (2018) Tough poly(L-DOPA)-containing Double Network Hydrogel Beads with High Capacity of Dye Adsorption. CHINESE JOURNAL OF POLYMER SCIENCE, 36 (11): (1251-1261). [PMID:] [10.1007/s10118-018-2163-2] |
| 12. Zhanfang Cao, Yajun Yue, Hong Zhong, Pei Qiu, Pei Chen, Xin Wen, Shuai Wang, Guangyi Liu. (2016) The cationic dye removal by novel SiZn composites prepared from zinc ash. Journal of the Taiwan Institute of Chemical Engineers, [PMID:] [10.1016/j.jtice.2016.12.005] |
| 13. Wei Tang, Xinyue Wang, Shuqi Guo, Jinxin Huan, Haojie Qian, Caoxing Huang, Yucai He. (2024) Demonstrating the synergistic impact of sodium lignosulfonate in dilute acid pretreatment and enzymatic hydrolysis of poplar sawdust. FUEL, [PMID:] [10.1016/j.fuel.2024.134214] |
| 14. Shuang Guo, Chuanjie Fang, Jiaqi Li, Yongbing Zhuang, Liping Zhu. (2024) Intrinsically microporous polyimide membranes with synergistic aromatic and alicyclic linking groups for efficient molecular separation. SEPARATION AND PURIFICATION TECHNOLOGY, [PMID:] [10.1016/j.seppur.2024.127530] |
| 15. Fupeng Li, Jiaqi Li, Hukang Guo, Weilin Feng, Jianyu Wang, Chuanjie Fang, Liping Zhu. (2024) Ultramicroporous cardo-pendant polyamide nanofilms for enhanced organic solvent nanofiltration. JOURNAL OF MEMBRANE SCIENCE, [PMID:] [10.1016/j.memsci.2024.122879] |
| 16. Xiaoqin Yan, Yan Wang, Changjie Chen, Chaoyue Yang, Xiaoqian Luo, Chuanjie Fang, Shuai Wang. (2025) The heat treatment of mixed matrix membranes induced by 2D nanosheets for improved nanofiltration. DESALINATION, [PMID:] [10.1016/j.desal.2025.119763] |
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