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产品名称
荧光素异硫氰酸酯异构体I, suitable for protein labeling, ≥90% (HPLC), powder
质量水平
方案
≥90% (HPLC)
表单
powder
技术
titration: suitable
颜色
orange to dark orange
mp
>360 °C (lit.)
溶解性
acetone: 1 mg/mL
荧光
λex 492 nm; λem 518 nm (green)
适用性
suitable for protein labeling
应用
diagnostic assay manufacturing
hematology
histology
储存温度
2-8°C
SMILES字符串
Oc1ccc2c(Oc3cc(O)ccc3C24OC(=O)c5cc(ccc45)N=C=S)c1
InChI
1S/C21H11NO5S/c23-12-2-5-16-18(8-12)26-19-9-13(24)3-6-17(19)21(16)15-4-1-11(22-10-28)7-14(15)20(25)27-21/h1-9,23-24H
InChI key
MHMNJMPURVTYEJ-UHFFFAOYSA-N
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一般描述
它被广泛用于通过胺基将荧光标记附着到蛋白质上。异硫氰酸酯基团可与蛋白中的氨基末端和伯胺反应。它已用于对蛋白质标记，包括抗体和凝集素。
异硫氰酸荧光素异构体I已被提议作为接触敏化剂。
应用
生物学应用，包括用于蛋白荧光标记试剂、用于蛋白示踪的荧光试剂以及作为病原体快速鉴定的荧光抗体技术中的一种试剂。在毛细管电泳（CE）测定过程中，它可用作人尿液中苯丙胺、甲基苯丙胺、3,4-亚甲二氧基甲基苯丙胺和对苯乙胺的衍生试剂。它可用于荧光抗体的制备。它可用于体外敏化研究。
警示用语：
Danger
危险声明
危险分类
Resp. Sens. 1 - Skin Sens. 1
储存分类代码
11 - Combustible Solids
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
从最新的版本中选择一种：
分析证书(COA)
Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
How do I get lot-specific information or a Certificate of Analysis?
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
How do I find price and availability?
There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote. USA customers: 1-800-325-3010 or view local office numbers.
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
After the FITC (e.g., Product No. F7250) is conjugated to the protein, what is the solution stability of the conjugated protein?
The stability of the conjugated protein will be essentially the stability of the unconjugated protein. Some conjugated proteins might be stable when stored at -20°C and other conjugated proteins will have better solution stability at 2-8°C If the protein concentration is too low, this also has a negative effect upon the stability of the conjugated protein.
Is Product No. F7250, Fluorescein isothiocyanate isomer I, pharmaceutical grade?
No. The product is considered suitable for research use only.
How stable is FITC Isomer 1 (e.g., Product No. F7250) once conjugated to an antibody?
FITC can photo bleach fairly rapidly. The prepared solution should be stored in a dark container and protected from light. When viewing the antibody staining under a microscope, it is advisable to use subdued fluorescent light when possible. If the fluorescent light stays at one position for too long, photo bleaching is noticeable.
Is the intensity of FITC (e.g., Product No. F7250) pH dependent?
Yes; many articles have reported the pH dependence of the fluorescence of fluorescein derivatives. See the following references: Archives Biochem. Biophys., 133, 263 (1969); J. Immunol., 95, 1165 (1966); Archives Biochem. Biophys., 73, 1 (1958); Standard test for labeling efficiency of FITC with BSA: NCCLS Approved Standard: ASM-1, 2nd ed., June, 1975; Characterization of FITC-dyes by IR and TLC: Analytical Biochem., 29, 526 (1969); Fluorescent labeling of proteins: Proc. Nat. Acad. Sci., 72, 459 (1975); Amer. J. Pathol., 34, 1081 (1958); Fluorescent labeling of a lectin: Meth. Enzymol., 81, 65 (1982).
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