The Casein used to prepare this product is a mixture of Alpha-s1, Alpha-s2, Beta, and Kappa Casein. Combined, these forms of casein have a molecular weight range of 19 - 25.2 kDa. The Fluorescein isothiocyanate I isomer has a molecular weight of 389.38. The ratio of casein to FITC is approximately 11:1. A confirmed molecular weight has not been established.
C0528
Casein fluorescein isothiocyanate from bovine milk
Type III, essentially salt-free, lyophilized powder
Synonym(s):
FITC-casein
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10 MG
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10 MG
$200.70
25 MG
$345.01
100 MG
$1,028.50
About This Item
$200.70
List Price$223.00Save 10%Web-Only Promotion
Available to ship onApril 29, 2025Details
Request a Bulk Order
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type
Type III
Quality Level
form
essentially salt-free, lyophilized powder
extent of labeling
≥50 μg FITC per mg solid
solubility
water: 5 mg/mL, clear to hazy
storage temp.
2-8°C
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Application
Casein fluorescein isothiocyanate from bovine milk has been used:
- in accessing zona pellucida (ZP) and perivitelline space (PVS) to evaluate changes induced by protease treatment[1]
- to make a reference line in immunochromatographic devices[2]
- in running gel for the documentation of proteinases[3]
highly sensitive protease substrate
Biochem/physiol Actions
Casein fluorescein isothiocyanate is mainly used as a substrate in estimating the protease activity of psychrotrophic bacteria. It is also used as a substrate for determining the activity of bacteria in milk.[4]
Storage Class
11 - Combustible Solids
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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