詳細介紹
熒光染料Sulfo-Cy7.5 maleimide 現貨供應,水溶性花青素Cy7.5-馬來酰亞胺
名稱:Sulfo-Cyanine7.5 maleimide
Sulfo-Cy7.5 maleimide
Sulfo-Cyanine7.5 Mal
分子式:C51H51K3N4O15S4
分子量:1205.52
純 度:≥95%
外 觀:綠色固體
溶解性:溶于水,DMF,DMSO
Ex/Em:788/808nm
消光系數:223000 L?mol?1?cm?1
結構式:
產品簡介:
磺化Cy7.5(sulfo Cyanine 7.5; sulfo Cy7.5)是一種發近紅外(NIR)熒光的花青素類熒光染料。磺化Cy7.5是磺化修飾過的Cy7.5,水溶性好。磺化Cy7.5的消光系數高,熒光也很亮,并且對pH不敏感,并且由于它的熒光波長(Em:797nm)恰好處于肌體組織近紅外窗口 I 的區域(肌體的血液,體液和組織此區域背景熒光弱,而長波長穿透性強),所以磺化Cy7.5常應用于小動物活體體內成像中。磺化Cy7.5可以用來標記蛋白,抗體,多肽,核酸分子,納米粒等。由于強水溶性加帶電荷,磺化花青素標記的生物分子更穩定,不易產生疏水性聚集。
本產品磺化Cy7.5熒光基(fluorophore)是優化后的結構,多次甲基(polymethine)橋鏈經環己烯固化,熒光***產率提高了20%,從而使熒光更亮。
馬來酰亞胺(maleimide)是生物標記反應中常用的基團,它可以和巰基(-SH)通過親和加成反應生成穩定的巰醚(thioester)結構從而實現標記。盡管胺基(比如賴氨酸精氨酸側鏈)也有親和性,但在中性或微酸性緩沖液中,馬來酰亞胺選擇性標記巰基(反應速度比胺基快>1000倍)。標記反應反應迅速,選擇性高,產率好,另外,巰基是一種在生物分子中***存在的官能團,比如蛋白中的絲氨酸(cysteine)和雙硫鍵等,因此馬來酰亞胺/巰基(maleimide/thiol)標記已成為僅次于NHS/胺基標記的***常用生物連接反應(bioconjugation)。
磺化Cy7.5-馬來酰亞胺的水溶性非常好,所以可以在水相的標記反應體系中直接使用,不需要有機溶劑助溶,特別適合標記對有機溶劑敏感的生物分子。另外磺化Cy7.5水溶性好,并且染料分子本身帶電荷,標記后不會引發目標分子疏水性聚集,提高熒光標記產物的穩定性。磺化Cy7.5-伯胺也溶于甲醇,DMSO,DMF等有機溶劑,標記反應也可以在純有機溶劑中進行。如需脂溶性Cy7.5染料,可選擇普通花青(cyanine),即Cy7.5-馬來酰亞胺( D10039 )。
磺化Cy7.5-馬來酰亞胺標記后的產物Ex/Em是788/808nm。和它具有相似熒光特性的染料包括Alexa Fluor 790,DyLight 800,吲哚菁綠(indocyanine green, ICG)等。
保存與運輸方法:
保存:-20°C避光干燥保存,2年有效。
運輸:室溫運輸。
其它熒光染料:
Streptavidin-CY5.5
Streptavidin-CY5
Streptavidin-CY3
Streptavidin-TRITC
Streptavidin-FITC
Streptavidin-thiol
Avidin-CY3
Avidin-CY5
Avidin-CY5.5
Avidin (without modification)
Avidin-Sepharose
Avidin-thiol
Avidin-FITC
Avidin-TRITC
Human serum albumin, Sepharose beads (HAS- Sepharose beads)
Human serum albumin thiol (HSA-SH)
Human serum albumin Biotin (HSA-Biotin)
Human serum albumin TRITC (HSA-TRITC)
Human serum albumin Fluorescein (HSA-FITC)
Human serum albumin CY5 (HSA-CY5)
Human serum albumin CY3 (HSA-CY3)
Human serum albumin CY5.5 (HSA-CY5.5)
Human serum albumin (HSA, without modification)
Bovine serum albumin, Sepharose beads (BSA- Sepharose beads)
Bovine serum albumin thiol (BSA-SH)
Bovine serum albumin Biotin (BSA-Biotin)
Bovine serum albumin TRITC (BSA-TRITC)
Bovine serum albumin Fluorescein (BSA-FITC)
Bovine serum albumin CY5 (BSA-CY5)
Bovine serum albumin CY3 (BSA-CY3)
Bovine serum albumin CY5.5 (BSA-CY5.5)
Bovine serum albumin (BSA, without modification)
Bovine serum albumin tetramethylrhodamine (BSA-tetramethylrhodamine)
Concanavalin A刀豆求蛋白A產品:
Concanavalin A-CY5
Concanavalin A-CY3
Concanavalin A-CY5.5
Concanavalin A-Sepharose
Concanavalin A-Biotin
Concanavalin A-SH
Concanavalin A-tetramethylrhodamine
Concanavalin A-FITC
Concanavalin A (without modification)
Ficoll-Fluorescein, MW 20 kDa
Ficoll-Fluorescein, MW 40 kDa
Ficoll-Fluorescein, MW 70 kDa
Ficoll-Fluorescein, MW 400 kDa
Heparin-Biotin, MW 18 kDa
Heparin-Rhodamine, MW 18 kDa
Heparin-Fluorescein, MW 18 kDa
Heparin-NIR Dye, HP MW: 18kDa
Heparin-Amine, MW 18 kDa
Chitosan-Rhodamine, 200-500 cP, 85% DDA
Chitosan-Rhodamine, MW 200kDa, 95% DDA
Chitosan-Rhodamine, MW 200kDa, 85% DDA
Chitosan-Fluorescein, 10-50 cP, 85% DDA
Chitosan-Fluorescein, 200-500 cP, 85% DDA
Chitosan-Fluorescein, MW 200kDa, 95% DDA
Chitosan-Fluorescein, MW 200kDa, 85% DDA
Dextran-Biotin, MW 6 kDa
Dextran-Biotin, MW 20 kDa
Dextran-Biotin, MW 40 kDa
Dextran-Biotin, MW 70 kDa
Dextran-Biotin, MW 100 kDa
Dextran-Biotin, MW 550 kDa
Dextran-Biotin, MW 2,000 kDa
Dextran-Rhodamine, MW 6 kDa
Dextran-Rhodamine, MW 20 kDa
Dextran-Rhodamine, MW 40 kDa
Dextran-Rhodamine, MW 70 kDa
Dextran-Rhodamine, MW 100 kDa
Dextran-Rhodamine, MW 550 kDa
Dextran-Rhodamine, MW 2,000 kDa
Dextran-Fluorescein, MW 6 kDa
Dextran-Fluorescein, MW 20 kDa
Dextran-Fluorescein, MW 40 kDa
Dextran-Fluorescein, MW 70 kDa
Dextran-Fluorescein, MW 100 kDa
Dextran-Fluorescein, MW 550 kDa
Dextran-Fluorescein, MW 2,000 kDa
Dextran-NIR Dye, DE MW: 6k-2000k
Dextran-Amine, MW 6 kDa
Dextran-Amine, MW 20 kDa
Dextran-Amine, MW 40 kDa
Dextran-Amine, MW 70 kDa
Dextran-Amine, MW 100 kDa
Dextran-Amine, MW 550 kDa
Dextran-Amine, MW 2,000 kDa
FITC-DEAE-dextrans熒光素葡聚糖產品:
FITC-DEAE-dextran,MW:3000-6000
FITC-DEAE-dextran,MW:20000-30000
FITC-DEAE-dextran,MW:30000-60000
FITC-DEAE-dextran,MW:70000-90000
FITC-DEAE-dextran,MW:160000-190000
FITC-Inulin熒光素菊粉產品:
FITC-Inulin,MW:4000
FITC-Polysucrose熒光素聚蔗糖產品:
FITC-Polysucrose,MW:15000-30000
FITC-Polysucrose,MW:30000-50000
FITC-Polysucrose,MW:70000
FITC-Polysucrose,MW:300000-450000
FITC-CM-Polysucrose 熒光素羧基聚蔗糖產品:
FITC-CM-Polysucrose,MW:60000-80000
FITC-CM-Polysucrose,MW:350000-450000
FITC-DEAE-Polysucrose熒光素DEAE聚蔗糖產品:
FITC-DEAE-Polysucrose,MW:400000
FITC-Dextran sulfate產品:
FITC-Dextran sulphate,MW:30000-50000
FITC-Dextran sulphate,MW:400000-650000
CY3-Dextran, CY5-Dextran,CY7-Dextran產品列表:
DX5-S3-1 Dextran, Cy3 labeled 5000 Da 2 mg
DX10-S3-1 Dextran, Cy3 labeled 10000 Da 5 mg
DX40-S3-1 Dextran, Cy3 labeled 40000 Da 5 mg
Thiol Dextran產品列表:
DX5-TH-1 Dextran, Thiol Functional 5000 Da 50 mg
DX10-TH-1 Dextran, Thiol Functional 10000 Da 50 mg
DX40-TH-1 Dextran, Thiol Functional 40000 Da 50 mg
Wheat germ agglutinin & Conjugates(麥胚凝集素交聯劑)
FITC-Wheat germ agglutinin
RB-Wheat germ agglutinin
CY3-Wheat germ agglutinin
CY5-Wheat germ agglutinin
Transferrin & Conjugates(熒光標記轉染鐵蛋白)
FITC-Transferrin
RB-Transferrin
CY3-Transferrin
CY5-Transferrin
CY7-Transferrin
Biotin-Transferrin
Lysozyme & conjugates(熒光標記溶菌酶)
FITC-Lysozyme
RB-Lysozyme
CY3-Lysozyme
CY5-Lysozyme
CY7-Lysozyme
Biotin-Lysozyme
Catalase conjugates(熒光標記過氧化氫酶)
FITC-Catalase
RB-Catalase
CY3-Catalase
CY5-Catalase
CY7-Catalase
Biotin-Catalase
Polylysine conjugates(熒光標記多聚賴氨酸氨酸)
FITC-Polylysine
RB-Polylysine
CY3-Polylysine
CY5-Polylysine
CY7-Polylysine
Biotin-Polylysine
Protein A & conjugates(熒光標記蛋白A)
FITC-Protein A
RB-Protein A
CY3-Protein A
CY5-Protein A
CY7-Protein A
Biotin-Protein A
HRP-Protein A
Maleimide-Protein A
Insulin & conjugates(熒光標記胰島素)
FITC-Insulin
RB-Insulin
CY3-Insulin
CY5-Insulin
Biotin-Insulin
Horseradish Peroxidase (HRP) Conjugates(辣根過氧化物酶交聯劑)
Biotin-HRP
Streptavidin-HRP
FITC-HRP
CY3-HRP
CY5-HRP
RB-HRP
Maleimide-HRP
NH2-HRP
HS-HRP
Hylauronic acid & Conjugates(透明質酸交聯劑)
FITC-Hylauronic acid
RB-Hylauronic acid
CY3-Hylauronic acid
CY5-Hylauronic acid
CY7-Hylauronic acid
Biotin-Hylauronic acid
Heparin & Conjugates(肝素交聯劑)
FITC-Heparin
RB-Heparin
CY3-Heparin
CY5-Heparin
Biotin-Heparin
Ficoll & Conjugates(聚蔗糖交聯劑)
FITC-Ficoll
RB-Ficoll
CY3-Ficoll
CY5-Ficoll
Biotin-Ficoll
Chitosan & Conjugates(殼聚糖交聯劑)
FITC-Chitosan
RB-Chitosan
CY3-Chitosan
CY5-Chitosan
Biotin-Chitosan
Lipopolysaccharides Conjugates(脂多糖交聯)
FITC-Lipopolysaccharides
RB-Lipopolysaccharides
CY3-Lipopolysaccharides
CY5-Lipopolysaccharides
CY5.5-Lipopolysaccharides
Casein conjugates(酪蛋白交聯劑)
FITC-Casein
RB-Casein
CY3-Casein
CY5-Casein
CY5.5-Casein
Biotin-Casein
α-Chymotrypsin conjugates (α-胰凝乳蛋白交聯劑)
FITC-α-Chymotrypsin
RB-α-Chymotrypsin
CY3-α-Chymotrypsin
CY5-α-Chymotrypsin
CY5.5-α-Chymotrypsin
Polylysine & conjugates(多聚賴氨酸和共軛物)
FITC-Polylysine
RB-Polylysine
CY3-Polylysine
CY5-Polylysine
CY5.5-Polylysine
Biotin-Polylysine