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Merck
CN

E2502

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
EC Number:
222-641-7
PubChem Substance ID:
24894474
UNSPSC Code:
12171500
Beilstein/REAXYS Number:
3873874
Colour Index Number:
43820
MDL number:
MFCD00012411

Key Documents

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InChI key

FFUMCSDSJNSMQH-HEXQVDJKSA-K

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+;;;

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

grade

practical grade

technique(s)

titration: suitable

Legal Information

Eriochrome is a registered trademark of Huntsman Petrochemical, LLC

Storage Class

13 - Non Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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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G Clark
Stain technology, 54(6), 337-344 (1979-11-01)
Since Pearse in 1957 introduced chromoxane cyanine R as a dual nuclear and cytoplasmic stain there have appeared numerous procedures for use of this dye. These have differed widely, sharing in common mainly the implication that each is best. A
P Bravetti et al.
Surgical and radiologic anatomy : SRA, 26(5), 371-378 (2004-08-04)
This is a histological study of the human temporo-mandibular joint and its surrounding muscles. Using a microscopic study of serial sections from anatomical specimens from six subjects, the detailed anatomy of the joint is presented with particular regard to the
Takaji Sato et al.
Biological & pharmaceutical bulletin, 30(7), 1187-1190 (2007-07-03)
A fluorimetric method using eriochrome cyanine R (ECR) was applied to determine trace amounts of albumin in bronchoalveolar lavage fluid (BALF). The ECR-albumin adduct showed intense fluorescence and the calibration curve was linear in the range of 2.5-100 microg/ml of
Hong-Wen Gao et al.
Journal of AOAC International, 88(4), 1231-1235 (2005-09-13)
The chromophore eriochrome cyanine R (ECR) was used to sensitively coordinate Al(II) and Fe(II) in the presence of cetylpyridinium chloride (CPC) at pH 4.8. Trace amounts of Fe(III) can displace Al(III) from the Al(ECR)(CPC) ternary complex to form the Fe(ECR)(CPC)
Ning-chuan Feng et al.
Guang pu xue yu guang pu fen xi = Guang pu, 24(2), 194-196 (2005-03-17)
The resonance light scattering (RLS) of Solochrome Cyanine R(SCR) is greatly enhanced by proteins. Based on this phenomenon, a novel method for the determination of protein by using SCR as a labeling agent was developed. In the pH 4.0 solution
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