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1.15941

Light green SF yellowish (C.I. 42095)

for microscopy Certistain®

Synonym(s):

Light green SF yellowish (C.I. 42095)

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About This Item

Empirical Formula (Hill Notation):
C37H34N2Na2O9S3
CAS Number:
5141-20-8
Molecular Weight:
792.85
UNSPSC Code:
41116130
EC Index Number:
225-906-5
MDL number:
MFCD00012121
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Quality Segment

400

form

solid

potency

>2000 mg/kg LD50, oral (Rat)

composition

Dye, ≥75% spectrophotometric assay

pH

2.9 (25 °C, 10 g/L in H2O)

solubility

200 g/L

bulk density

200 kg/m3

εmax

830-1130 at 629-634 nm in water at 0.005 g/L

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

2-30°C

SMILES string

[Na+].[Na+].[S](=O)(=O)([O-])c1cc(ccc1)CN(CC)c2ccc(cc2)[C+](c5ccc(cc5)[S](=O)(=O)[O-])c3ccc(cc3)N(CC)Cc4cc(ccc4)[S](=O)(=O)[O-]

InChI

1S/C37H36N2O9S3.2Na/c1-3-38(25-27-7-5-9-35(23-27)50(43,44)45)32-17-11-29(12-18-32)37(31-15-21-34(22-16-31)49(40,41)42)30-13-19-33(20-14-30)39(4-2)26-28-8-6-10-36(24-28)51(46,47)48;;/h5-24H,3-4,25-26H2,1-2H3,(H2-,40,41,42,43,44,45,46,47,48);;/q;2*+1/p-2

InChI key

DGOBMKYRQHEFGQ-UHFFFAOYSA-L

General description

Light green SF yellowish (C.I. 42095) for microscopy Certistain®, is a dry dye that is used for the preparation of a staining solution which is is widely used as a counterstain. for e.g. trichrome Masson-Goldner staining in histological sections or for Papanicolaou′s polychromatic staining in cytology of samples human origin.
As Certistain® dye it is chemically quality-certified according to highest standards and strict specifications. As an IVD product and CE registered, it can be used hassle-free in diagnostics and laboratory accreditations. For more details, please see instructions for use (IFU). The IFU can be downloaded from this webpage.

Analysis Note

Dye content (spectrophotometrically): ≥ 75 %
Identity
- sodium:
passes test
- UV/VIS-Spectrum: passes test
Absorption maximum λ max (water): 629 - 634 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.005 g/l; water): 830 - 1130
TLC-Test: passes test
Loss on drying (110 °C): ≤ 12 %
Suitability for microscopy: passes test

Legal Information

CERTISTAIN is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_c

Not applicable

flash_point_f

Not applicable

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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