87-88-7
2,5-DICHLORO-3,6-DIHYDROXY-1,4-BENZOQUINONE
CAS: 87-88-7
Molecular Formula: C6H2Cl2O4
87-88-7 - Names and Identifiers
87-88-7 - Physico-chemical Properties
| Molecular Formula | C6H2Cl2O4 |
| Molar Mass | 208.98 |
| Melting Point | ≥300 °C(lit.) |
| Storage Condition | Room Temprature |
| MDL | MFCD00001596 |
| Physical and Chemical Properties | Orange to red powder. Melting Point: ≥ 300 ℃ |
| Use | Chloranilic acid used in paperchromatographic detection of metals. |
87-88-7 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
87-88-7 - Reference
| Reference Show more | 1. [IF=4.952] Yulong Wei et al."Characterization of blueberry (Vaccinium corymbosum L.) catechol oxidases III binding mechanism in response to selected substrates and inhibitors."Lwt Food Sci Technol. 2022 Mar;158:113142 |
87-88-7 - Determination of lomefloxacin by charge-shift fluorescence spectrometry with chlorran acid as receptor
From VIP Journal Professional Edition
Author:
Du Liming ,< a href = "https://xueshu.baidu.com/usercenter/data/author?cmd=authoruri&wd=authoruri:(637687012 f187315) author:(Zhou Jing)" target = "_blank"> Zhou Jing ,< a href = "https://xueshu.baidu.com/usercenter/data/author?cmd=authoruri&wd=authoruri:(4 e2bf9d0da975864) author:(Yuan Jianmei)" target = "_blank">/a>
Summary:
The charge transfer reaction between electron acceptor chloric acid and electron donor lomefloxacin was studied. The experimental results show that stable n-& pi can be generated in acetone-methanol medium at room temperature; The fluorescence emission of the complex is significantly more sensitive than that of lomefloxacin. The different conditions and parameters affecting the reaction were studied and optimized, A new method for the simple and reliable determination of lomefloxacin based on charge transfer reaction was established, and the interference of coexisting agents of pharmaceutical preparations was also studied. The method has been successfully applied to the determination of lomefloxacin in pure products and preparations with satisfactory accuracy and precision. The minimum detection limit is 0.04 mg · L-1, the recovery rate is 97.4% ~ 99.3%, and the relative standard deviation is 1.3% ~ 2.6%. The mechanism of charge transfer reaction is also discussed.
keywords:
lomefloxacin chloran acid fluorescence spectrometry charge transfer reaction
DOI:
10.3321/j.issn:1000-0593.2004.12.036
cited:
Year:
2004
Last Update：2024-01-02 23:10:35
87-88-7 - Charge Transfer Reaction of Clotrimazole with Chloran Acid and Its Determination
from Baidu library
Author:
Li Huakan ,< a href = "https://xueshu.baidu.com/usercenter/data/author?cmd=authoruri&wd=authoruri:(4 fa8fe699b443dd3) author:(Zhao Guizhi)" target = "_blank"> Zhao Guizhi ,< a href = "https://xueshu.baidu.com/usercenter/data/author?cmd=authoruri&wd=authoruri:(eb3e6ba3ef20a66f) author:(Zhao Yanqing)" target = "_blank" ,< a href = "https://xueshu.baidu.com/usercenter/data/author?cmd=authoruri&wd=authoruri:(f3744e12c4614f) author:(Li Zuo)" target = "_blank"> Li Zuo
Summary:
clotrimazole and chloran acid undergo charge transfer reaction in acetone medium to form a 1:1 type complex. the & lambda of the complex; Max = 525 nm, the apparent molar absorbance coefficient is 1.22 × 103L mol-1 cm-1, the drug concentration conforms to Beer's law in the range of 0~300 mg/L, the relative standard deviation of 6 determinations is 1.4%, and the recovery rate is above 97%. The proposed method is used to determine the content of active ingredients in pharmaceutical tablets, and the results are consistent with the pharmacopoeia method.
keywords:
charge transfer reaction clotrimazole chloric acid spectrophotometry antifungal drugs content determination tablets
DOI:
10.3321/j.issn:0253-3820.2002.03.023
cited:
Year:
2002
Last Update：2023-08-16 22:23:51
87-88-7 - Study on Charge Transfer Reaction of Chloric Acid and Trimethoprim
From Wanfang
Author:
Zhang Na ,< a href = "https://xueshu.baidu.com/usercenter/data/author?cmd=authoruri&wd=authoruri:(7 a88e57dd3ef211e) author:(Zhou Xuguang)" target = "_blank"> Zhou Xuguang ,< a href = "https://xueshu.baidu.com/usercenter/data/author?cmd=authoruri&wd=authoruri:(235908615 cc63b37) author:(Guan Ruchang)" target = "_blank"> Guan R chang ,< a href = "https://xueshu.baidu.com/usercenter/data/author?cmd=authoruri&wd=authoruri:(468 f7eb35d9f3dc8) author:(Zhang Yaqiu)" target = "_blank"> Zhang Yaqiu
Summary:
Study on Charge Transfer Reaction of Chlorran Acid and Trimethoprim; Zhou Xuguang, Zhang Na, Jinzhou Medical College, Shenyang 110032, Liaoning College of Traditional Chinese Medicine; Guan Ruchang; Zhang Yaqiu Chlorran Acid (2,5-Dihydroxy -3,6-Dichloro-p-benzoquinone) as & pi; Electron receptor has been used to determine alkaloids [1,2], cardiovascular drugs [3. Trimethoprim (TMP) is a...
keywords:
chloric acid; trimethoprim; charge transfer reaction
DOI:
CNKI:SUN:YWFX. 0.1995-05-011
cited:
Year:
1995
Last Update：2023-08-16 22:23:51
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