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Fluorescein CAS:2321-07-5 Orange red crystalline powder
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Calcein CAS:1461-15-0 Orange powder
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Wright’s stain CAS:68988-92-1 Dark green powder
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Nigrosine (C.I. 50420) (Acid Black 2) CAS:8005-03-6 Black Flash Saccharoid
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Glyoxalbis(2-hydroxyanil) CAS:1149-16-2
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4,4-bis(Dimethylamino)thiobenzophenone CAS:1226-46-6 Deep red solid