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Jackson Immunoresearch

Cy™3 ChromPure Rat Transferrin

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ChromPure is our trade name for highly purified proteins from the serum of non-immunized animals.

Cy3 is brighter, more photostable, and gives less background than other orange-red fluorescing dye conjugates. Cy3 conjugates can be excited maximally at 550 nm, with peak emission at 570 nm. For fluorescence microscopy, Cy3 can be visualized with traditional tetramethyl rhodamine (TRITC) filter sets, since the excitation and emission spectra are nearly identical to those of TRITC. We recommend Cy3 as a brighter alternative to TRITC. Cy3 can be excited to about 50% of maximum with an argon laser (514 nm or 528 nm lines), or to about 75% of maximum with a helium/neon laser (543 nm line) or mercury lamp (546 nm line). Cy3 has been used with fluorescein for double labeling; however, the use of a narrow band-pass emission filter for fluorescein is recommended to minimize Cy3 fluorescence in the FITC filter set. Cy3 can also be paired with Alexa Fluor® 647 for multiple labeling when using a confocal microscope. However, a better choice for multiple labeling is Rhodamine Red-X because its fluorescence is midway between a green fluorescing dye (like Alexa Fluor® 488) and a far-red-fluorescing dye like Alexa Fluor® 647.

Host: Rat

Product: Transferrin

Conjugate: Cyanine Cy™3

Physical StateFreeze-dried powder
StorageStore freeze-dried powder at 2-8°C. When ready to use, rehydrate with indicated volume of d. water and centrifuge if not clear. Product is stable for about 6 weeks at 2-8°C as an undiluted liquid. Prepare working dilution fresh each day. For extended storage after rehydration, add an equal volume of glycerol (ACS grade or better) for a final concentration of 50%, and store at -20°C as a liquid. Note: after the addition of glycerol, the concentration of protein and buffer salts is one-half of the original. Alternatively, aliquot and freeze the product at -70°C or below in the absence of glycerol. Avoid repeated freezing and thawing. 
Expiration dateOne year from date of rehydration. However, the expiration date may be extended if the product is stored according to the recommendation and the test results are acceptable for its intended use.
PurityBased on immunoelectrophoresis at an antigen concentration of 20 mg/ml, the pattern of precipitation against goat anti-rat whole serum is the same as that against goat anti-rattransferrin. No precipitin line was detected against goat anti-rat IgG (H+L). 
Buffer0.01M Sodium Phosphate, 0.25M NaCl, pH 7.6 
Stabilizer15 mg/ml Bovine Serum Albumin (IgG-Free, Protease-Free) 
Preservative0.05% Sodium Azide

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Product Detail
Thomas No.
C840F13
Mfr. No.
012-160-050
Description
Cy™3 ChromPure Rat Transferrin, 1 mg

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Product C840F13 is restricted and can only be purchased by customers with a web profile linked to a Thomas Business Account - Click here to login or create your web profile. If you do not have a Thomas Business Account, please Contact Us and someone will respond with details on how to apply for a business account with us.

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