198250
Sigma-Aldrich

ROSE BENGAL, CERTIFIED BY THE BIOLOGICAL

Empform:

C20H2Cl4I4Na2O5

Synonyms English:

4,5,6,7-Tetrachloro-2′,4′,5′,7′-tetraiodofluorescein disodium salt; Acid Red 94; Bengal Rose B sodium salt; Rose Bengal sodium salt

Nacres: NA.47
Mdl No: MFCD00005043
Fw: 1017.64
Pubchem Substance Id: 24851870
Grouped product items
SKU Pack Size Availability Price Quantity
198250-25G 1X25g Estimate to ship on February 09, 2023 -
₫2,633,421
198250-5G 1X5g Estimate to ship on February 09, 2023 -
₫764,389
Request a Bulk Order Check Availability

Properties

Properties
Epsilon extinction coefficient
Lambda max 90000 at 546-550 
Lambda min nm at 0.008 
10percent volume accuracy measuring range g/L
100percent volume accuracy measuring range 548 nm
as measuring range diagnostic assay manufacturing
hematology
histology
concentration Dye content ≥
concentricity 80%
description ROSE BENGAL, CERTIFIED BY THE BIOLOGICAL
frame size powder
granulation certified by the Biological Stain Commission
inlet and outlet diam. 1S/C20H4Cl4I4O5.2Na/c21-10-8(9(20(31)32)11(22)13(24)12(10)23)7-3-1-5(25)16(29)14(27)18(3)33-19-4(7)2-6(26)17(30)15(19)28
inlet and outlet size /h1-229H(H3132)
inlet connection diam. /q
inlet connection size 2*+1/p-2
inlet diam. UWBXIFCTIZXXLS-UHFFFAOYSA-L
Need License To Purchase Not required
Check Obsolete 12/31/9999 12:00:00 AM
Temperature Control 1554
Shipping Mode DAS

Description

Application

Rose bengal has several microbilogical staining applications including:
  • Conn′s technique for bacteria in soil and Kreyberg′s stain for keratin and mucus
  • counterstaining hematoxylin
  • staining cellular inclusions, together with Bismark brown



General description

Rose Bengal is the sodium salt of tetraiodotetrachlorouorescein, C20H2O5I4Cl4Na2. It is an anionic water-soluble xanthene dye.

SAFETY INFORMATION

Signal Word

RIDADRRIDADR

WGK Germany

WGK 3

Flash Point (F)

Not applicable

Flash Point (C)

Not applicable

Target Organs

Risk Statement

Supplemental Hazard Statements

DOCUMENTATION

Certificate of Analysis View Sample COA
Certificate of Origin

TECHNICAL SERVICE

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