Fluorescein disodium salt
4 Inquiries
518-47-8
99%
Bottle,barrel,cargo,container,etc.
Yes
2026-11-19
Intermediates,Building blocks,API,Silicones,Peptides,Lab chemicals
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Product Description
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Seller Information
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Inquiry History
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DescriptionKeywords
518-47-8
Fluorescein disodium salt
C20H12O5.2Na
Quick DetailsProName:Fluorescein disodium salt
CasNo:518-47-8
Molecular Formula:C20H12O5.2Na
Appearance:powder, or liquid
Application:Pharmaceuticals, intermediates, APIs, custom synthesis, chemicals
DeliveryTime:5-7 Days
PackAge:Bottle, barrel, cargo, container, etc.
Port:Shanghai
Purity:99
Storage:Stored in room temperature, ventilated place
Transportation:By air, ship, express, etc.
LimitNum:0
Grade:Industrial Grade
SuperiorityBest Seller, High Quality, Competitive Price, Fast Delivery, Quick Response
DetailsLEAPChem supplies high quality Pharmaceuticals, intermediates, APIs, custom synthesis, fine chemicals and other industrial chemicalsECHEMI 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:
Intermediates,Building blocks,API,Silicones,Peptides,Lab chemicals
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Location:
Room A, 23rd Floor, No. 609 Yan'an Road, Gongshu District, Hangzhou, Zhejiang
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Payment Terms:
TT against copy of documents,D/P,L/C
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Average lead Time:
5 days
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Total Annual Revenue:
Above $100 million
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Year of Establishment:
2020
Company Certificates-
ISO
">Company ProfileLEAPChem is a specialized fine chemical supplier for research, development and production.
LEAPChem provides nearly 200,000 rare and innovative chemical products to support the evolving needs of our customers in research & bulk manufacturing activities.
As a highly customer-oriented enterprise, we are committed to providing high-quality customer services and products to our global customers in a cost-effective and efficient manner.
Our client list includes many major pharmaceutical and science companies, universities, research institutions and chemical catalogue companies.
Methodology: Sound & Stable; Active & Innovative.
Attitude: Conscientious; Ingenious.
Goals: Customer's Satisfaction
We regard client's success as our success.
At LEAPChem, we strive to be the preferred supplier for efficiency increasing and cost lowering in your Research & Production.
To achieve this strategic vision, we always push ourselves to exceed our customer's requirement. By focusing on the aim of 'Beyond Your Expectation', we continually expand our product lines, and enhance our systematic management and human resources.
Welcome to contact us and we look forward to becoming your reliable and preferred partner.
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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
Atracurium Besylate
1 MT Jan 14, 2026
Pakistan
Naphazoline Hydrochloride
1 MT Jan 14, 2026 Post an enquiry for this product
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