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21605

Sigma-Aldrich

Patent blue V sodium salt

for microscopy

Synonym(s):

Acid blue 3 sodium salt, Food Blue 5 sodium salt

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About This Item

Empirical Formula (Hill Notation):
C27H31N2NaO7S2
CAS Number:
20262-76-4
Molecular Weight:
582.66
Colour Index Number:
42051
Beilstein:
4108121
EC Number:
243-654-4
MDL number:
MFCD09608138
UNSPSC Code:
12171500
PubChem Substance ID:
57647933
NACRES:
NA.47

grade

for microscopy

Quality Level

200

Assay

5 — 10% Na basis

form

powder

color

blue to very dark blue

pH range

4.0-6.0

solubility

methanol: water (1:1): 0.01 g/10 mL, blue to very deep blue

εmax

≥1200 at 630-640 nm in water
≥50 at 405-415 nm in water

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[Na+].CCN(CC)c1ccc(cc1)\C(=C2/C=CC(\C=C2)=[N+](\CC)CC)c3cc(O)c(cc3S([O-])(=O)=O)S([O-])(=O)=O

InChI

1S/C27H32N2O7S2.Na/c1-5-28(6-2)21-13-9-19(10-14-21)27(20-11-15-22(16-12-20)29(7-3)8-4)23-17-24(30)26(38(34,35)36)18-25(23)37(31,32)33;/h9-18H,5-8H2,1-4H3,(H2-,30,31,32,33,34,35,36);/q;+1/p-1

InChI key

PMLFOMWMYRKZRF-UHFFFAOYSA-M

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General description

Patent Blue V sodium salt, also called as Sulfan Blue. is a disulfonated diaminotriphenylmethane dye with a hydrophilic anion and an aromatic system. It is orange under acid conditions and blue in alkali.

Application

Patent Blue V sodium salt has been used as a stain in pharmacology.It is a biological stain used for the demonstration of hemoglobin. Its applications are also seen in the field of biology and medicine where it′s used as a physiological tracer, to study the movement of fluid within the kidney. Patent Blue V is useful as a marker dye in oncological surgeries for accurate and complete excision of lymph nodes. It is also used as a food color.
Patent blue V sodium salt has been used as a stain in pharmacology.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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