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溴 | 7726-95-6

中文名称
中文别名
溴单质;液溴;溴水;溴素;溴矿
英文名称
bromine
英文别名
dibromine;Br2;molecular bromine
溴化学式
CAS
7726-95-6
化学式
Br2
mdl
——
分子量
159.808
InChiKey
GDTBXPJZTBHREO-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

物化性质

  • 稳定性/保质期:
    1. 常温下蒸发很快,其蒸气有窒息性和刺激性气味,呈红棕色。微溶于水,溶解度为3.58克/100毫升水(20℃),易溶于乙醇、乙醚、氯仿、四氯化碳、煤油及二硫化碳等多种有机溶剂,并能溶于盐酸、氢溴酸和溴化合物溶液。 2. 在25℃时,其溶解度为3.35克/100克水。与水反应生成次溴酸。密度为3.1055克/立方厘米(25℃),蒸汽密度为7.139克/升(0℃)。 3. 稳定性:稳定。 4. 禁配物:强还原剂、碱金属、铝、铜、易燃或可燃物。 5. 应避免的条件:光照。 6. 聚合危害:不会发生聚合。

计算性质

  • 辛醇/水分配系数(LogP):
    1.9
  • 重原子数:
    2
  • 可旋转键数:
    0
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.0
  • 拓扑面积:
    0
  • 氢给体数:
    0
  • 氢受体数:
    0

ADMET

代谢
在水体和生物体内,溴会形成溴化物。
In water, and living organisms, bromine forms bromide.
来源:Hazardous Substances Data Bank (HSDB)
代谢
溴主要通过吸入进入人体,但也可以通过皮肤接触。溴盐可以摄入。由于溴的活性,它会迅速形成溴化物并可能沉积在组织中,取代其他卤素。
Bromine is mainly absorbed via inhalation, but may also enter the body through dermal contact. Bromine salts can be ingested. Due to its reactivity, bromine quickly forms bromide and may be deposited in the tissues, displacing other halogens. (L626)
来源:Toxin and Toxin Target Database (T3DB)
毒理性
  • 毒性总结
溴是一种深红棕色的、易挥发的、流动的双原子液体;在室温下可以蒸发。纯溴用于合成含有溴的各种物质。溴的其他用途包括阻燃剂、清洁剂、染料、摄影、水处理、药品、漂白纤维和丝绸。溴被注册用于水过滤器,以净化美国海军舰艇和近海油田平台的饮用水。它也被用作商业场所、医院和家庭等室内非食品接触区域的通用消毒剂和杀菌剂,以控制细菌和真菌。人类暴露和毒性:吸入刺激性的溴蒸汽或直接接触液体或蒸汽与皮肤和粘膜会产生直接组织损伤。伤害可能发生在呼吸道的不同层次,这取决于溴的浓度和暴露时间。纯溴液体或蒸汽对皮肤极为刺激。与其他化学剂不同,接触后没有立即明显的皮肤反应。损伤初期征兆或伤害变得明显的延迟常常导致更严重的损伤。最常见的局部效应是水泡形成、皮肤棕色色素沉着和愈合缓慢的溃疡。暴露于低浓度会产生流泪、流鼻涕、眼部刺激、咳嗽、呼吸困难、窒息、喘息、鼻出血和头痛。舌头和颊粘膜可能会出现棕色色素沉着,并伴有特征性的呼吸气味。在高浓度下,会注意到上呼吸道的炎症损伤、畏光和眼睑痉挛。上呼吸道和下呼吸道:延迟或立即的支气管收缩和喉痉挛、喉水肿和哮喘的发展。随着肺实质渗透的增加,可能会出现支气管周围脓肿、与化学性肺炎一致的肺部浸润、支气管炎闭塞性和肺水肿。急性阻塞性通气障碍可能导致酸中毒、类似麻疹的皮疹和随后的死亡。需要注意的是,更严重的呼吸道症状可能在暴露后数小时才会出现。溴积累的一种罕见的皮肤表现被称为溴痘,它会从红色丘疹发展成脓疱,脓疱会增大并发展成硬结。文献中描述了父亲暴露于溴蒸汽后,精子生成受到轻度抑制和生殖性能受损。动物研究:暴露于240或750 ppm溴的小鼠的死亡率取决于研究的持续时间。吸入0.2 ppm溴的大鼠、小鼠和家兔的呼吸、神经和内分泌系统功能出现紊乱。大鼠连续6个月喂食溴(0.01 mg/kg)后,其条件反射和几个血液指标发生了变化。生态毒性研究:由于生产活动导致的溴释放对植被产生了严重影响。
IDENTIFICATION AND USE: Bromine is a dark reddish-brown, volatile, mobile diatomic liquid; vaporizes at room temperature. Pure bromine is used in the synthesis of a variety of bromine containing substances. Other uses for bromine include flame retardants, cleaning agents, dyestuffs, photography, water sanitation, pharmaceuticals, bleaching fibers and silk. Bromine is registered for use in water filters to purify drinking water aboard US Naval ships and offshore oil well platforms. It is also used as a general disinfectant and sanitizer in indoor, non-food contact areas such as commercial establishments, hospitals and households, to control bacteria and fungi. HUMAN EXPOSURE AND TOXICITY: Inhalation of the irritant bromine vapors or direct contact with the liquid or vapor with skin and mucous membranes will produce direct tissue injury. Injury may occur at various levels of the respiratory tract depending upon the concentration of bromine and the duration of exposure. Pure bromine liquid or vapor is extremely irritating to the skin. Unlike other chemical agents, there is no immediate visible skin reaction after contact. The delay before initial signs or injury become apparent often results in more extreme damage. The most common local effects are blister formation, brownish discoloration of the skin and slow healing ulcers. Exposure to low concentrations produces lacrimation, rhinorrhea, eye irritation, coughing, dyspnea, choking, wheezing, epistaxis and headache. A brownish discoloration of the tongue and buccal mucosa may result and be accompanied by a characteristic breath odor. Inflammatory lesions of the upper airway, photophobia and blepharospasm are noted at higher levels. Upper and lower respiratory tract: delayed or immediate bronchoconstriction and the development of laryngeal spasm, glottal edema and asthma. With increased parenchymal penetration, there may be associated peribronchiolar abscesses, pulmonary infiltrates consistent with chemical pneumonitis, bronchiolitis obliterans and pulmonary edema. Acute obstructive ventilator impairment may lead to acidosis, measles like rash and subsequent death. It should be noted that more severe respiratory symptoms may be delayed for several hours after the exposure. There is a rare cutaneous manifestation of bromide accumulation is known as bromoderma tuberosum which progresses from red papules to pustules that enlarge and develop into indurated lesions. A mild degree of spermatogenic suppression and impaired reproductive performance following paternal exposure to bromine vapor described in the literature. ANIMAL STUDIES: The mortality of mice exposed to 240 or 750 ppm bromine was dependent on the duration of the study. Rats, mice and rabbits inhaling 0.2 ppm bromine developed disturbances in the functions of their respiratory, nervous and endocrine systems. Rats fed bromine (0.01 mg/kg)) for 6 months experienced changes in their conditioned reflexes and several blood indexes. ECOTOXICITY STUDIES: Bromine releases as a consequence of production activities have had serious effects upon vegetation.
来源:Hazardous Substances Data Bank (HSDB)
毒理性
  • 毒性总结
溴是一种强大的氧化剂,能够从粘膜的水分中释放出氧自由基。这些自由基也是有力的氧化剂,能够造成组织损伤。此外,氢溴酸和溴酸的形成将导致二次刺激。溴离子还已知会影响中枢神经系统,导致溴中毒。这被认为是溴离子取代神经递质和传输系统中的氯离子的结果,从而影响许多突触过程。(L626, L627, A543)
Bromine is a powerful oxidizing agent and is able to release oxygen free radicals from the water in mucous membranes. These free radicals are also potent oxidizers and produce tissue damage. In additon, the formation of hydrobromic and bromic acids will result in secondary irritation. The bromide ion is also known to affect the central nervous system, causing bromism. This is believed to be a result of bromide ions substituting for chloride ions in the in actions of neurotransmitters and transport systems, thus affecting numerous synaptic processes. (L626, L627, A543)
来源:Toxin and Toxin Target Database (T3DB)
毒理性
  • 致癌物分类
对人类不具有致癌性(未被国际癌症研究机构IARC列名)。
No indication of carcinogenicity to humans (not listed by IARC).
来源:Toxin and Toxin Target Database (T3DB)
毒理性
  • 健康影响
溴蒸气会引起刺激和对粘膜的直接损害。元素溴也会烧伤皮肤。溴化物离子是一种中枢神经系统抑制剂,长期暴露会产生神经元效应。这被称为溴中毒,可能导致从中睡意到昏迷、恶病质、昏迷、反射丧失或病理反射、阵挛性癫痫、震颤、共济失调、神经敏感性丧失、瘫痪、眼乳头水肿、言语异常、脑水肿、谵妄、攻击性和精神病的中心反应。
Bromine vapour causes irritation and direct damage to the mucous membranes. Elemental bromine also burns the skin. The bromide ion is a central nervous system depressant and chronic exposure produces neuronal effects. This is called bromism and can result in central reactions reaching from somnolence to coma, cachexia, exicosis, loss of reflexes or pathologic reflexes, clonic seizures, tremor, ataxia, loss of neural sensitivity, paresis, papillar edema of the eyes, abnormal speech, cerebral edema, delirium, aggressiveness, and psychoses. (L625, L626, L627)
来源:Toxin and Toxin Target Database (T3DB)
毒理性
  • 暴露途径
所有暴露途径均可能产生严重的局部影响。
Serious local effects by all routes of exposure.
来源:ILO-WHO International Chemical Safety Cards (ICSCs)
吸收、分配和排泄
溴蒸汽通过呼吸系统、皮肤和消化系统进入人体。它具有累积性,以溴化物的形式沉积在组织中。
Bromine vapors enter body by respiratory system, skin and digestive system. It has cumulative properties, being deposited in tissues as bromides.
来源:Hazardous Substances Data Bank (HSDB)

制备方法与用途

制备方法

主要用途包括制取溴化物,并应用于医药、农药、染料、香料、摄影材料、灭火剂、选矿、冶金、鞣革及净水等领域。作为普通分析试剂,乙烯和重碳氢化合物的吸收剂,以及有机合成中的溴化剂。

合成制备方法 1. 空气吹出法

将硫酸酸化的海水(pH值为3~3.5)与氯气一同送入溴游离塔进行氧化反应。生成的游离溴进入吹出塔,通过空气将其吹出。含溴空气进入吸收塔,用纯碱溶液吸收生成溴化钠和溴酸钠。加入硫酸酸化后(pH约为2),通过蒸馏、冷凝及分离得到成品溴。

2. 蒸汽蒸馏法

将预热至65~75℃的浓原卤料液加入溴反应塔,并通入氯气和蒸汽进行逆流置换反应,氧化置换出来的溴溶解于浓原卤中。通过蒸汽加热使溴汽化并随水蒸气一同从塔上部排出。温度控制在80~90℃,溴经冷凝器冷却至20~30℃后分离、精馏、冷凝制得成品溴。

3. 二氧化硫法

含溴素空气与二氧化硫反应生成溴化氢气体,用水吸收并蒸馏制得溴素。

4. 工业溴的提纯

采用蒸馏法去除有机杂质。装置如图所示:1—圆底烧瓶;2—柱子;3—球形接头;4—冷凝器;5—接受器;6,7—吸收瓶

为除去氯杂质,可用氢溴酸处理: [ \text{Cl}_2 + 2\text{HBr} \rightarrow \text{Br}_2 + 2\text{HCl} ]

在1~1.5L玻璃瓶中加入275mL溴,分批加入48%氢溴酸(每次25mL),观察混合物直至均匀。停止加酸后,加入200~250mL水(每次50mL)使液体分离,下层为纯溴(225g)。上层液体蒸馏可得600g溴,最后通过蒸馏回收氢溴酸。

5. 氢溴酸处理法

在搅拌下将48%的氢溴酸少量分次加入工业溴中,直至混合物均匀。再依次加入蒸馏水使液体分离,下层为纯溴(225g),上层液体蒸馏收集56~61℃下蒸出的溴。与下层合并即得试剂溴。

用途简介

主要用于制造无机和有机溴化合物,并应用于阻燃剂、汽油和航空燃料抗震剂的生产。在医药领域用于生成抗菌素如溴化钠、溴化钾及氯霉素、金霉素等,镇静剂如溴化樟脑。农业上用于杀虫剂、熏蒸剂及植物生长激素的生产。染料工业中使用于溴靛蓝等含溴染料制造。感光工业则用于溴化银,是制作照片、电影胶片的主要原料。石油工业中用于二溴乙烷、2-溴丙烷等产品的制造。此外,在选矿、冶金、食品、鞣革及化学分析和水处理方面也有广泛应用。

用途

作为分析试剂、氧化剂、烯烃吸收剂以及溴化剂,广泛应用于有机合成领域。

上下游信息

反应信息

  • 作为反应物:
    描述:
    potassium cyanide 作用下, 以 为溶剂, 生成 溴化氰
    参考文献:
    名称:
    Langlois, Justus Liebigs Annalen der Chemie, 1861, vol. 1, p. 384
    摘要:
    DOI:
  • 作为产物:
    描述:
    次溴酸盐酸 作用下, 生成
    参考文献:
    名称:
    Dancer, W., Journal of the Chemical Society, 1862, vol. 15, p. 479
    摘要:
    DOI:
  • 作为试剂:
    描述:
    (3R,5R,8R,9R,10S,13S,14S,17S)-17-((R)-1-hydroxyethyl)-3,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-3-ol 在 氢溴酸potassium carbonatepyridinium chlorochromate 作用下, 以 四氢呋喃甲醇二氯甲烷 为溶剂, 反应 15.0h, 生成 1-(3-fluorophenyl)-3-(2-((3R,5R,8R,9R,10S,13S,14S,17S)-3-hydroxy-3,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl)-1,3-dihydro-2H-imidazole-2-one
    参考文献:
    名称:
    在 C-21 处具有新型药效团的神经活性类固醇的合成和评估可以确定具有有利 PK 谱和更高 EC50 和 Emax 的化合物作为 GABAA 受体的 PAM
    摘要:
    Zuranolone (SAGE-217) 是一种神经活性类固醇 (γ-氨基丁酸)A (GABAA) 受体阳性变构调节剂 (PAM),是 FDA 于 2023 年批准的第一个口服药物,用于治疗产后抑郁症 (PPD) 患者。SAGE-217 有一个“黑框”警告,会损害驾驶或从事其他潜在危险活动的能力。此外,SAGE-217 可引起嗜睡和意识模糊等 CNS 抑制作用、自杀念头和行为以及胚胎-胎儿毒性。基于 SAGE-217 的构效关系 (SAR),设计并合成了 28 种在 C-21 调节的 SAGE-217 衍生物下具有新型药效团的神经活性类固醇。通过突触 α1β2γ2 GABAA 受体和突触外 α4β3δ GABAA 受体细胞测定评价生物活性。最佳化合物 S28 在突触外 GABAA 受体上表现出比 SAGE-217 更有效的效力和相似的疗效。与上述不同,化合物 S28 对突触 GABAA 受体的效力与
    DOI:
    10.1016/j.ejmech.2024.116602
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文献信息

  • A European Perspective on Depression in the Community: The DEPRES Study
    作者:Saena Arbabzadeh-Bouchez、Andre Tylee、Jean-Pierre Lépine
    DOI:10.1017/s1092852900017430
    日期:2002.2
    ABSTRACT

    Depression is one of the most prevalent disorders in the general population, causing personal and social disability and impairment. Major studies assessing the diagnosis and management of depression have shown that it is often underdiagnosed and undertreated. A pan-European study aimed at assessing the extent and consequences of depression in six different countries is reported in this article. Different types of depressive profiles are analyzed and their respective management has been compared. The importance of improving diagnosis and treatment of depression is underlined. Appropriate management of depression depends on the recognition of depressive symptoms by patients, their possibility of seeking care, and the ability of the primary care physician to recognize the disorder and prescribe the appropriate medicines. Improvement in all of these fields is necessary.

    摘要抑郁症是普通人群中最常见的疾病之一,会造成个人和社会的残疾和损伤。对抑郁症的诊断和管理进行评估的主要研究表明,抑郁症往往诊断不足、治疗不力。本文报告了一项泛欧研究,旨在评估六个不同国家抑郁症的程度和后果。研究分析了不同类型的抑郁症,并对其各自的治疗方法进行了比较。文章强调了改进抑郁症诊断和治疗的重要性。抑郁症的适当治疗取决于患者对抑郁症状的认识、他们寻求治疗的可能性以及初级保健医生识别疾病和开具适当药物的能力。所有这些领域都需要改进。
  • Detection of coronary stenoses by stress echocardiography using a previously implanted pacemaker for ventricular pacing: Preliminary report of a new method
    作者:Daniel Benchimol、Marc Mazanof、HÉLÈNe Benchimol、Virginie Bernard、Thierry Couffinhal、Raymond Roudaut、BÉNÉDicte Dubroca、Jean François Dartigues、Jacques Bonnet、Xaver Pillois
    DOI:10.1002/clc.4960231111
    日期:2000.11
    infarction. HYPOTHESIS To detect significant coronary stenosis in patients with previously implanted pacemakers, we tested a new stress echocardiography method using incremental ventricular pacing by already implanted pacemakers. METHODS We studied prospectively 25 consecutive patients who underwent stress echocardiography with increasing ventricular pacing up to either 85% of the age-predicted maximal
    背景技术具有起搏器的患者的数量一直在增加,并且其中许多患者将出现胸痛或暗示心绞痛的症状。使用起搏器的患者很难通过无创方法检测和评估心肌缺血和冠状动脉疾病。通常,就缺血甚至急性心肌梗塞而言,静止和运动期间的心电图(ECG)都很难分析。假设为了检测先前植入起搏器的患者的严重冠状动脉狭窄,我们测试了一种新的应力超声心动图方法,该方法采用已经植入的起搏器进行增量心室起搏。方法我们前瞻性地研究了连续25例接受压力超声心动图检查的患者,这些患者的心室起搏增加至年龄预测的最大心率或胸痛的85%。阳性试验是由新的运动功能减退或至少在两个相邻地区壁运动的先前变化加重定义的。所有患者均进行了冠状动脉造影,以确定冠状动脉狭窄的存在和严重程度。结果在25项测试中,有11项(44%)因胸痛而停止使用。中度不适感为1(4%),血压下降为1(4%),其余12位患者(48%)的测试中达到了目标起搏率。没有并发症。13名患
  • Complexes of platinum(II), platinum(IV), rhodium(III) and iridium(III) containing orthometallated triphenylphosphine
    作者:Martin A. Bennett、Suresh K. Bhargava、Mingzhe Ke、Anthony C. Willis
    DOI:10.1039/b004908p
    日期:——
    atoms. Oxidative addition of methyl iodide or iodine to [PtC6H4(PPh2)-2}2] gives initially platinum(IV) complexes [PtI(R)C6H4(PPh2)-2}2] (R = Me or I) in which the added groups are mutually trans; in the final, stable products the added groups and the phosphorus atoms are, separately, mutually cis. Oxidative addition of bromine to [PtC6H4(PPh2)-2}2] gives initially trans-[PtBr2C6H4(PPh2)-2}2] but
    用2-LiC 6 H 4 PPh 2处理[PtCl 2(SEt 2)2 ]或[RhCl 3(SEt 2)3 ],得到四元环螯合物芳基铂(II)或芳基铑(III)络合物[ Pt C 6 H 4(P Ph 2)-2} 2 ]和[ Rh C 6 H 4(P Ph 2)-2} 3 ],而相应的[IrCl 3(SEt 2)3 ]给出了Ir-C 6 H 4(PPh 2)键断裂产生的IrCl C 6 H 4(P Ph 2)-2} 2(PPh 3)] 。[ Pt C 6 H 4(P Ph 2)-2} 2 ]的化学性质主要是由Pt–P键的不稳定性所决定的,这些键依次被配体在室温下,得到含有单齿Ç络合物6 ħ 4(PPH 2),即[铂C 6 H ^ 4(P博士2)-2} η 1 -C 6 ħ 4(PPH 2)-2}(L )] [L = PPH 3,P(OPH)3,P(OME)3或卜吨] NC和[PT
  • Accessing Pincer Bis(carbene) Ni(IV) Complexes from Ni(II) via Halogen and Halogen Surrogates
    作者:Gabriel Espinosa Martinez、Cristian Ocampo、Yun Ji Park、Alison R. Fout
    DOI:10.1021/jacs.5b12827
    日期:2016.4.6
    bis(diisopropylphenyl-benzimidazol-2-ylidene)phenyl); X = Cl or Br) with halogen and halogen surrogates to form ((DIPP)CCC)NiX3. These complexes represent a rare oxidation state of nickel, as well as an unprecedented reaction pathway to access these species through Br2 and halogen surrogate (benzyltrimethylammonium tribromide). The Ni(IV) complexes have been characterized by a suite of spectroscopic techniques
    该通讯描述了 ((DIPP)CCC)NiX ((DIPP)CCC = 双 (二异丙基苯基-苯并咪唑-2-亚基) 苯基) 的双电子氧化;X = Cl 或 Br) 与卤素和卤素替代物形成 ((DIPP)CCC)NiX3。这些配合物代表了镍的罕见氧化态,以及通过 Br2 和卤素替代物(苄基三甲基三溴化铵)访问这些物种的前所未有的反应途径。Ni(IV) 配合物已通过一套光谱技术表征,并且可以很容易地还原为 Ni(II) 对应物,从而允许在 Ni(II)/Ni(IV) 氧化态之间循环。
  • Reactivity of a Dimethylplatinum(II) Complex with the Bis(2-pyridyl)dimethylsilane Ligand: Easy Silicon–Carbon Bond Activation
    作者:Muhieddine Safa、Michael C. Jennings、Richard J. Puddephatt
    DOI:10.1021/om3000136
    日期:2012.5.14
    (1; bps = bis(2-pyridyl)dimethylsilane) undergoes easy oxidative addition with bromine, iodine, methyl iodide, or methyl triflate to give [PtBr2Me2(bps)], [PtI2Me2(bps)], [PtIMe3(bps)], or [PtMe3(OH2)(bps)][OTf], respectively. The complex [PtIMe3(bps)] is slowly hydrolyzed in solution, with cleavage of the pyridyl–silicon bonds, to give [PtIMe3(py)2] and (Me2SiO)n. In contrast, oxidation of 1 with oxygen/CF3CH2OH
    化合物[PtMe 2(bps)](1; bps =双(2-吡啶基)二甲基硅烷)易与溴,碘,碘甲烷或三氟甲磺酸甲酯氧化加成,得到[PtBr 2 Me 2(bps)],[ PtI 2 Me 2(bps)],[PtIMe 3(bps)]或[PtMe 3(OH 2)(bps)] [OTf]。配合物[PtIMe 3(bps)]在溶液中缓慢水解,并裂解吡啶基-硅键,得到[PtIMe 3(py)2 ]和(Me 2 SiO)n。相反,用氧气/ CF 3氧化1CH 2 OH,过氧化氢,或过氧化二苯甲酰/ H 2 ö用甲基-硅键的裂解发生,得到[PTME(BPS)-μ-κ 3 Ñ,Ñ,Ô -OSiMe(2-C 5 H ^ 4 N)2 PTME 3 ] [CF 3 CH 2 OB(C 6 ˚F 5)3 ],[PTME 3 κ 3 ñ,ñ,ø - (2-C 5 H ^ 4 N)2 SIMEO}]或[PTME 3
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表征谱图

  • 氢谱
    1HNMR
  • 质谱
    MS
  • 碳谱
    13CNMR
  • 红外
    IR
  • 拉曼
    Raman
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mass
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  • 峰位数据
  • 峰位匹配
  • 表征信息
Shift(ppm)
Intensity
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Assign
Shift(ppm)
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测试频率
样品用量
溶剂
溶剂用量
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