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E2502

Sigma-Aldrich

Eriochrome® Cyanine R

practical grade

Synonym(s):

Chromoxane Cyanine R, Eriochrome® Cyanine RC

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About This Item

Empirical Formula (Hill Notation):
C23H15Na3O9S
CAS Number:
3564-18-9
Molecular Weight:
536.39
Colour Index Number:
43820
Beilstein:
3873874
EC Number:
222-641-7
MDL number:
MFCD00012411
UNSPSC Code:
12171500
PubChem Substance ID:
24894474

grade

practical grade

technique(s)

titration: suitable

SMILES string

[Na+].[Na+].[Na+].Cc1cc(cc(C([O-])=O)c1O)\C(=C2\C=C(C)C(=O)C(=C2)C([O-])=O)c3ccccc3S([O-])(=O)=O

InChI

1S/C23H18O9S.3Na/c1-11-7-13(9-16(20(11)24)22(26)27)19(15-5-3-4-6-18(15)33(30,31)32)14-8-12(2)21(25)17(10-14)23(28)29;;;/h3-10,24H,1-2H3,(H,26,27)(H,28,29)(H,30,31,32);;;/q;3*+1/p-3/b19-14+;;;

InChI key

FFUMCSDSJNSMQH-HEXQVDJKSA-K

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Legal Information

Eriochrome is a registered trademark of Huntsman Petrochemical, LLC

Storage Class Code

13 - Non 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

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
117H2506
030K2509
116K2604
106H2538
094K2607

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J A Kiernan
Journal of microscopy, 134(Pt 1), 13-23 (1984-04-01)
Chromoxane cyanine R (Colour Index No. 43820, Mordant blue 3; also known as eriochrome cyanine R and solochrome cyanine R) is a valuable biological stain. The dyestuff is supplied as a powder containing a little less than 50% by weight
A Shokrollahi et al.
Journal of hazardous materials, 151(2-3), 642-648 (2007-08-09)
A simple and accurate spectrophotometric method for determination of trace and ultra-trace amounts of Al3+ ion in tap and wastewater sample has been described. Using the eriochrome cyanine R (ECR) in the presence of N,N-dodecyltrimethylammonium bromide (DTAB) as cationic surfactant
L D Moon et al.
Experimental neurology, 161(1), 49-66 (2000-02-23)
Transected CNS axons do not regenerate spontaneously but may do so if given an appropriate environment through which to grow. Since molecules associated with CNS macroglia are thought to be inhibitory to axon regeneration, we have tested the hypothesis that
Fluorimetric determination of human serum albumin with eriochrome cyanine R.
Y X Ci et al.
The Analyst, 113(4), 679-681 (1988-04-01)
B Starczewska
Journal of pharmaceutical and biomedical analysis, 23(2-3), 383-386 (2000-08-10)
Eriochrome cyanine R (ECR) has been tested as reagent for the determination of imipramine. It reacts in neutral medium with imipramine forming reddish compound, which can be quantitatively extracted into n-butanol. This property has been successfully used for the extractive-spectrophotometric
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