二硝基苯

Two: Synthesized a novel rhodamine derivative with a single amidogen, then analyzed and characterized the dye by 1H NMR and EI-MS.

二、以对硝基苯甲醛和八羟基久洛尼定为原料，合成了一种新型的罗丹明荧光染料，并通过核磁共振、质谱等手段对染料结构进行了表征。

Methods The antianaphylaxis activities of myricetin was measured by passive cutaneous anaphylaxis, dextran-induced itch and DNCB-induced delayed type hypersensitivity in mice,respectively.

采用小鼠同种、异种被动皮肤过敏反应、右旋糖酐致小鼠全身瘙痒反应和2，4-二硝基氯苯所致小鼠耳廓皮肤迟发型超敏反应实验，探讨杨梅素的抗过敏作用。

The paper presents that 7-chloro-4-nitrobenz-2-oxa-1,3-diazole and isoniazide can produce an orange condensation product in carbinol medium and a new determination way of isoniazide is found based on it.

研究了异烟肼与7氯 4 硝基苯并 2 氧，3 二氮唑在甲醇介质中生成橙色缩合产物的最佳条件，并由此建立了一种间接分光光度法测量药物中异烟肼的新方法。

Main production sulfide Green, Chloropicrin, picric acid, dinitro-chlorobenzene, potassium chlorate, high sodium chlorate, ammonium perchlorate, such as more than 30 kinds of products, exports of Asia and Europe more than 30 countries and regions. In 2000 through ISO9002 quality system certification, production scale, cost-effective, enterprise management, technological advancement, product quality, environmental protection are rising, has very broad prospects for development.

主要生产硫化青、氯化苦、苦味酸、二硝基氯化苯、氯酸钾、高氯酸钠、高氯酸铵等30多种产品，出口亚欧30多个国家和地区。2000年通过ISO9002质量体系认证，生产规模、经济效益、企业管理、技术进步、产品质量、环境保护均不断提升，具有十分广阔的发展前景。

Objective: To explore the effects and mechanism of CD4+CD25+ regulatory T cells in mouse experimental colitis treated by CLYSTER No. 1. Method: The mouse model of experimental colitis was established by dinitrochlorobenzene-acetic acid in mice DNCB and AA.

中文摘要：目的：探讨CD4+CD25+调节性T细胞在2，4-二硝基氯苯和醋酸复合法诱发的小鼠溃疡性结肠炎中的变化规律及中药灌肠1号治疗的作用机制。

The sujects of study were iniected intradermally with PHA in a dose of 67 μg/0.1 ml. The diameters on the reacted areas with erythema and induration were measured after different time intervals.

目前，体内法细胞免疫皮肤试验抗原除PHA外，还有腮腺炎皮试抗原、念珠菌抗原提纯液、双链酶、结核菌素、毛霉菌素和二硝基氮苯等。

Methods: According to the refe-rence of new traditional Chinese medicine study, maximal dosage of drug was given to rabbits to do the acute toxicological and irritative test on skin. The guinea pig was used to do the skin hypersensitive test with excipient as negative control and 1% 2,4-dinitrochlorobenzene as the positive control.

参照中药新药研究指导原则，采用最大给药剂量法对大白兔进行皮肤用药急性毒性和刺激性试验；以赋形剂为阴性对照，1%的2，4-二硝基氯苯丙酮溶液为阳性对照，对豚鼠进行皮肤过敏性试验。

With morpholine and 3,4-difluoronitrobenzene as the starting materials, it had been prepared in seven-step procedure with overall yield of 28.1%.

以吗啉和3，4-二氟硝基苯为起始原料，经七步反应，合成利奈唑酮，总收率为28.1％。

The method for producing 4-aminodiphenylamine from nitrobenzene and aniline was an ideal method at the present.

从硝基苯和苯胺直接合成4氨基二苯胺是当前一种较为理想的方法。

Project Background and Conditions: The company started research new chemical products in 1998. After two years of efforts, a series of pharmaceutical intermediate sulfathiazole leave instructions, including : 3- methyl sulfathiazole leave instructions, 2- sulfathiazole leave instructions ethanoic acid, 2- acetyl sulfathiazole leave instructions, 2-thiofuran amino ethane ,2-thiofuran acetic, 3,4,5- tighter nitrobenzene have been successfully developed. 2-thiofuran amino ethane are the precursors raw materials of series antibiotic analgesic.

二、项目建设背景及条件：1998年公司开始研究开发高新精细化工产品，经过两年的努力，已成功研制出噻吩系列医药中间体，包括：3-甲基噻吩、2-噻吩乙酸、2-乙酰噻吩、2-噻吩乙胺、2-噻吩乙醇、3，4，5-三氯硝基苯等。2-噻吩乙胺系列噻吩产品使用于血小板及血栓有关的心脏血管病及消炎镇痛等如氯吡格雷、兴孢噻吩钠、兴孢西丁、噻吩洛酸等十几种新药的前体原料，是国家政策鼓励发展和有自主知识产权的项目。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失