ERYTHROSIN B 16423-68-0

Erythrosine B, also known as tetraiodofluorescein B, is a red or reddish-brown granules or powder, odorless, soluble in water, soluble in ethanol, propylene glycol and glycerol, insoluble in oil. It has good stainability, especially for proteins.

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Model:
16423-68-0
Brand:
jnfuchemical
Code:
16423-68-0

Product Description

ERYTHROSIN B Basic information
Product Name:	ERYTHROSIN B
CAS:	16423-68-0
MF:	C20H9I4NaO5
MW:	859.89
EINECS:	240-474-8
Mol File:	16423-68-0.mol
ERYTHROSIN B Chemical Properties
Melting point	142~144℃
bulk density	470kg/m3
density	0.98
vapor pressure	0Pa at 25℃
Fp	285℃
storage temp.	room temp
solubility	100g/l
pka	4.1(at 25℃)
form	Fine Powder
Colour Index	45430
color	Deep red to brown
PH	6-7 (10g/l, H2O, 20℃)
PH Range	0(yellow)-3.6(red)
Water Solubility	Soluble in water
ε(extinction coefficient)	≥13000 at 308-312nm
ε(extinction coefficient)	≥32000 at 259-263nm
λmax	525nm
Merck	143,693
BRN	1443945
Stability:	Stable. Incompatible with strong oxidizing agents.
Biological Applications	Detecting gene expression,phosphoproteins,protease,stress biomarkers; treating age-related macular degeneration,arteriosclerosis,bone metabolic diseases,burns,cancer,diabetes,human immunodeficiency virus infection,obesity
Major Application	color filter, light emitting diodes, nanosensors, imaging materials, inks, paints, colored bubbles, detergents, cleaners, cosmetics, oral care agent, hair dyes, antiseptic, treatment of burns, diabetes, obesity, cancer, viral diseases, radio chemotheray, photodynamic therapy
InChIKey	RAGZEDHHTPQLAI-UHFFFAOYSA-L
LogP	-1.163 at 25℃
CAS DataBase Reference	16423-68-0
EPA Substance Registry System	Erythrosine B (16423-68-0)

ERYTHROSIN B C20H9I4NaO5 16423-68-0 Fluorescent indicator Biological stain Industrial colorant

Quality Assurance

Full-Process Quality Control: From incoming raw material inspection to in-process monitoring and final outgoing checks, every batch is inspected at each production stage against strict acceptance standards.
Third-Party Certified & Tested: Our quality management system is certified to ISO 9001, and products are regularly tested by accredited laboratories (e.g. SGS, TÜV). Test reports are available on request.
100% Batch Traceability: Each batch carries a unique lot number that links raw material records, production parameters, and test results, enabling complete traceability from factory to final delivery.
Pre-Shipment Inspection: Every order passes a final pre-shipment inspection, with inspection photos and reports shared before dispatch.

FAQ From Customers

Q1: What is the minimum order quantity?

A: There is no quantity limit for the first sample or trial order. Just tell us the actual quantity you need.
Q2: How can I confirm that the quality meets the requirements?

A: Provide your specifications, and our technical team will check them or customize them for you; we can provide TDS, MSDS, and COA, and accept third-party testing.
Q3: How do you ensure stable quality?

A: We manufacture under an ISO 9001 quality system, test every batch before release, and retain samples for 24 months for traceability.
Q4: Do you provide samples?

A: Yes — Free samples are available; freight is at buyer's expense for express delivery.