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Fluorescein isothiocyanate Isomer I, 250 mg

≥90 %, p.a.
Examples of effect: Have an allergenic effect, carcinogenic, mutagenic, toxic to reproduction and cause developmental toxicity (reprotoxic) or damage to organs Safety: You must be well-informed before starting work with these substances; wear protective clothing and gloves, eye protection and mask or breathing protection.
i may cause an allergic skin reaction, may cause allergy or asthma symptoms or breathing difficulties if inhaled
P261.7 P280.5 P302+P352.1
i avoid breathing dust, wear protective gloves, IF ON SKIN: Wash with plenty of soap and water
Pack Qty.
Empirical formula C21H11NO5S
Molar mass (M) 389,39 g/mol
Melting point (mp) >360 °C
Storage temp. -20 °C
Transport temp. ambient temp.
CAS No. [3326-32-7]
EG-Nr. 222-042-0

For the study of antigen and antibody reactions.

Used for labeling of different biomolecules in immunohistology and immunocytology. Excitation maximu ...
Product details
Type analysis

€76.25/Pack Qty. 

excl. VAT. | 250 mg per Pack Qty.

Art. No. 3745.1

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Product details

Fluorescein isothiocyanate Isomer I ≥90 %, p.a.

Used for labeling of different biomolecules in immunohistology and immunocytology. Excitation maximum: 490 nm. Emission maximum: 525 nm

Technical Information
pKa (at 25 °C) ≥90 %  
Fluorescein isothiocyanate Isomer I
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3745.1 250 mg glass €76.25
3745.2 100 mg glass €39.70
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Analysis certificates

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The following analysis certificates have been found:

Type analysis

Appearanceorange-yellow, fine powder
Assay (HPLC)≥90,0 %
Sulphated ash≤1,0 %
Loss on drying≤5 %

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