蘇木色精號：517-28-2   
英文名稱：Hematoxylin；7,11b-Dihydrobenz[b]inde,2-d]pyran-3,4,6a,9,10(6H)-pentol；C.I.75290；Natural Black 1    
其他名稱：蘇木素；蘇木色素；蘇木精   
號：517-28-2   
C16H14O6?3H2O=356.36   
級別：試劑級   
含量：≥95%   
水分：≤6%   
Em (550nm, 0.1M NaOH)：>14700   
性狀(以下信息僅供參考)：白色至淺黃色結(jié)晶，露光變紅。溶于熱水和熱乙醇，也溶于氫氧化堿、硼砂溶液和甘油，微溶于冷水和乙迷。溶液貯存時色變深，熔點(diǎn)100～120℃(140℃)。有刺激性。蘇木精是從南美的蘇木（熱帶豆科植物）干枝中用乙迷浸制出來的一種色素，是Z常用的染料之一。蘇木精不能直接染色，必須暴露在通氣的地方，使他變成氧化蘇木精（又叫蘇木素）后才能使用，這叫做“成熟”。蘇木精的“成熟”過程需時較長，配置后時間愈久，染色力愈強(qiáng)。被染材料必須經(jīng)金屬鹽作媒劑作用后才有著色力。所以在配制蘇木精染劑時都要用媒染劑。常用的媒染劑有硫酸鋁按、鉀明礬和鐵明礬等。蘇木精是是染細(xì)胞核的優(yōu)良材料，他能把細(xì)胞中不同的結(jié)構(gòu)分化出各種不同的顏色。分化時組織所染的顏色因處理的情況而異，用酸性溶液（如鹽酸—酒精）分化后呈紅色，水洗后仍恢復(fù)青藍(lán)色，用堿性溶液（如氨水）分化后呈藍(lán)色，水洗后呈藍(lán)黑色。遇光變紅。 在水溶液中，特別是在堿溶液中易被空氣氧化成紅棕色的氧化蘇木精。   
用途：本品僅供科研，不得用于其它用途。(以下用途僅供參考)核和染色質(zhì)的染色劑。用不同的媒染劑可得到藍(lán)色或黑色。定性檢定銅(II)、鐵(III)、鉬酸鹽、鉍(III)和錫(IV)等；光度測定釩、鋁、錫(IV)、氟、鈮、鉭等；墨水制造；酸堿指示劑。pH 5.0(黃)～6.0(紫)、0.0(粉紅)～1.0(綠)。    
保存：RT，避光
蘇木色精號：517-28-2 儲存條件：
避光、干燥陰涼處封閉貯存,嚴(yán)禁與有毒、有害物品混放、混運(yùn)。本品為非危險 產(chǎn)品可按一般化學(xué)品運(yùn)輸,輕搬動輕放,防止日曬、雨淋！受熱、受潮、受光后易喪失活力,保存期短,因此貯存和運(yùn)輸條件比較苛刻。
運(yùn)輸：汽車運(yùn)輸、EMS郵政快遞，申通快遞等， 款到上海3天內(nèi)發(fā)貨；
售后：如您對我們的產(chǎn)品服務(wù)及技術(shù)指標(biāo)有特殊要求，請及時通知我方。
存儲：應(yīng)貯存在干燥清潔避光的環(huán)境中，嚴(yán)禁與有毒物質(zhì)混放，以免污染（保質(zhì)期為兩年）。
蘇木色精號：517-28-2 主要優(yōu)級純、分級純和化學(xué)純3種：
（1）優(yōu)級純（GR：Guaranteed reagent），又稱一級品或保證試劑，99.8%，這種試劑純度Z高，雜質(zhì)含量Z低，適合于重要精密的分析工作和科學(xué)研究工作，使用綠色瓶簽。
（2）分析純（AR），又稱二級試劑，純度很高，99.7%，略次于優(yōu)級純，適合于重要分析及一般研究工作，使用紅色瓶簽。
（3）化學(xué)純（CP），又稱三級試劑，≥ 99.5%，純度與分析純相差較大，適用于工礦、學(xué)校一般分析工作。使用藍(lán)色（深藍(lán)色）標(biāo)簽。
（4）實(shí)驗(yàn)試劑（LR：Laboratory reagent），又稱四級試劑。
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儲 存 液  Preservative: 15mM Sodium Azide, Constituents: 1% BSA, 0.01M PBS, pH 7.4
產(chǎn)品應(yīng)用   WB=1:100-500  ELISA=1:500-1000  IHC-P=1:100-500  IHC-F=1:100-500  ICC=1:100-500  IF=1:100-500
（石蠟切片需做抗原修復(fù)）
 not yet tested in other applications.
 optimal dilutions/concentrations should be determined by the end user. 
保存條件  Store at -20 °C for one year. Avoid repeated freeze/thaw cycles. The lyophilized antibody is stable at room temperature for at least one month and for greater than a year when kept at -20°C. When reconstituted in sterile pH 7.4 0.01M PBS or diluent of antibody the antibody is stable for at least two weeks at 2-4 °C.
Important Note  This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
產(chǎn)品介紹 Members of the NK-2 family of homeodomain proteins are key regulators of growth and development in several tissues, including brain, heart and pancreas. During neural development, sonic hedgehog (Shh) is known to control cell fate and mitogenesis, which is correlated with Shh dose-dependent expression of several genes, including Nkx-2.1, Nkx-2.2 and Nkx-2.9. Specifically, the Nkx-2.2 protein is responsible for directing ventral neuronal patterning in response to graded Shh signaling. In the pancreas, Nkx-2.2 is expressed in a, b and pancreatic polypeptide (PP) cells, but not in d cells. Nkx-2.2 expression is required for differentiation of pancreatic b cells, which produce insulin. Homozygous null mutations of the Nkx-2.2 gene in mice lead to severe hyperglycemia and death shortly after birth, which suggests that Nkx-2.2 may be an important therapeutic target for pancreatic diseases, including diabetes and cancer.
Function : May be involved in specifying diencephalic neuromeric boundaries, and in controlling the expression of genes that play a role in axonal guidance.
Subunit : Interacts with OLIG2 (By similarity).
Subcellular Location : Nucleus.
Similarity : Belongs to the NK-2 homeobox family.
Contains 1 homeobox DNA-binding domain.
Database links : UniProtKB/Swiss-Prot: O95096.1
英文名稱  Anti-NPTX1/NP1
中文名稱  神經(jīng)細(xì)胞正五聚體1抗體
別    名  Neuronal pentraxin I; Neuronal pentraxin-1; NP 1; NP-I; NP1; Nptx1; NPTX1_HUMAN. 
濃    度  1mg/1ml
規(guī) 格  0.1ml/100μg  0.2ml/200μg
抗體來源  Rabbit 
克隆類型  polyclonal
蘇木色精號：517-28-2 交叉反應(yīng)  Human, Mouse, Rat, Chicken, Dog, Pig, Cow, Horse, Rabbit
產(chǎn)品類型  一抗   
研究領(lǐng)域  免疫學(xué) 神經(jīng)生物學(xué) 
蛋白分子量  predicted molecular weight: 45kDa
性    狀  Lyophilized or Liquid
免 疫 原  KLH conjugated synthetic peptide derived from human NPTX1
亞    型  IgG
純化方法  affinity purified by Protein A
儲 存 液  Preservative: 15mM Sodium Azide, Constituents: 1% BSA, 0.01M PBS, pH 7.4
產(chǎn)品應(yīng)用   WB=1:100-500  ELISA=1:500-1000  IHC-P=1:100-500  IHC-F=1:100-500  ICC=1:100-500  IF=1:100-500
（石蠟切片需做抗原修復(fù)）
 not yet tested in other applications.
 optimal dilutions/concentrations should be determined by the end user. 
保存條件  Store at -20 °C for one year. Avoid repeated freeze/thaw cycles. The lyophilized antibody is stable at room temperature for at least one month and for greater than a year when kept at -20°C. When reconstituted in sterile pH 7.4 0.01M PBS or diluent of antibody the antibody is stable for at least two weeks at 2-4 °C.
Important Note  This product as supplied is intended for research use only, not for use in human, therapeutic or