Fluorescein sodium,Uranine
4 Inquiries
518-47-8
Industrial Grade
99%
DAHAI BIOCHEM
25kg/Bag
2026-12-31
HARD FAT
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Product Description
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Seller Information
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Inquiry History
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DescriptionECHEMI Editorial ReferenceOrange-red powder; odorless. Hygroscopic,soluble in water; sparingly soluble inalcohol.
Fluorescein sodium is an orange-red to dark red powder. Water-soluble form of fluorescein. Odorless and almost tasteless. pH (5% solution) 7.8. May be sensitive to prolonged exposure to light and to heat.
Moderately toxic by intraperitoneal route. Mildly toxic by ingestion. Human systemic effects by intravenous route: arrhythmias, eye hemorrhage, nausea or vomiting. Experimental reproductive effects. Questionable carcinogen with experimental tumorigenic data. Mutation data reported. When heated to decomposition it emits toxic fumes of Na2O.Basic Info-
Product Name:
Fluorescein Sodium
Other Name:9-(o-carboxyphenyl)-6-hydroxy-3h-xanthen-3-one,disodiumsalt;9’-(9h)xanthen)-3-one,3’,6’-dihydroxy-spiro(isobenzofuran-1(3hdisodiums;9’-[9h]xanthen]-3-one,3’,6’-dihydroxy-spiro[isobenzofuran-1(3hdisodiumsal;9-o-carboxyphenyl-6-hydroxy-3-isoxanthone,disodiumsalt;abcoluraninepowders&liquids;aizenuranine;c.i.45350disodiumsalt;c.i.45350sodiumsalt
CAS No.:518-47-8
Molecular Formula:C20H13NaO5
InChIKeys:NJDNXYGOVLYJHP-UHFFFAOYSA-L
Molecular Weight:356.31
Exact Mass:376.03200
BRN:3833041
EC Number:208-253-0
TSCA:TSCA listed
Color/Form:Rust-orange
HScode:32041200
Categories:
Characteristics-
λmax:
491nm, 493.5nm, 490nm
PSA:81.65000
XLogP3:4.54220
Appearance:Fluorescein, disodium salt is an orange-red to dark red powder. Water-soluble form of fluorescein. Odorless and almost tasteless. pH (5% solution) 7.8. May be sensitive to prolonged exposure to light and to heat.
Density:0.579[at 20℃]
Melting Point:320 °C
Boiling Point:620.8ºC at 760 mmHg
Flash Point:232.6ºC
Water Solubility:500 g/L (20 ºC)
Storage Conditions:Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Vapor Pressure:2.133hPa
Toxicity:LD50 in mice, rats (mg/kg): 4738, 6721 orally (Yankel, Loux)
Odor:Odorless
PH:8.3 (10g/l, H2O, 20℃)
PKA:2.2, 4.4, 6.7(at 25℃)
Henrys Law Constant:3.5×1010mol/(m3Pa) at 25℃, HSDB (2015)
Air and Water Reactions:Hygroscopic. Water soluble.
Reactivity Profile:Fluorescein disodium salt is incompatible with strong oxidizers. Also incompatible with acids, acid salts and salts of heavy metals .
Critical Temperature & Pressure:Store at +5°C to +30°C.
Hazard IdentificationClassification of the substance or mixture
Not classified.
GHS label elements, including precautionary statements
Pictogram(s) No symbol. Signal word No signal word
Hazard statement(s) none
Precautionary statement(s) Prevention none
Response none
Storage none
Disposal none
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.
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Seller Information
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Business Type:
Trader
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Main Products:
HARD FAT
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Location:
BUILDING 4,NO.571, STR.19,BAIYANG DISTRICT, HANGZHOU,CHINA
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Payment Terms:
TT against copy of documents,TT against B/L draft before shipment,100% TT in advance
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Total Annual Revenue:
Less than $1 million
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Total Employees:
5-10
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Year of Establishment:
2025
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Inquiry History4 Inquiries
Country Product Purchase Quantity Date Posted 
India
FLUORESCEIN SODIUM
2 MT Aug 21, 2025 
South Korea
Fluorescein Sodium
100 G Jul 22, 2026 
Pakistan
Naphazoline Hydrochloride
1 MT Jan 14, 2026
Pakistan
Atracurium Besylate
1 MT Jan 14, 2026 Post an enquiry for this product
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