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Merck
CN

67402

Light Green SF Yellowish

analytical standard

Synonym(s):

Acid Green 5

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About This Item

Linear Formula:
C37H34N2O9S3Na2
CAS Number:
5141-20-8
Molecular Weight:
792.85
EC Number:
225-906-5
UNSPSC Code:
85151701
NACRES:
NA.24
PubChem Substance ID:
329760576
MDL number:
MFCD00012121
Beilstein/REAXYS Number:
5717828

Key Documents

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InChI key

DGOBMKYRQHEFGQ-UHFFFAOYSA-L

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

SMILES string

[Na+].[Na+].CCN(Cc1cccc(c1)S([O-])(=O)=O)c2ccc(cc2)\C(=C3\C=CC(\C=C3)=[N+](/CC)Cc4cccc(c4)S([O-])(=O)=O)c5ccc(cc5)S([O-])(=O)=O

grade

analytical standard

assay

≥97.0% (TLC)

shelf life

limited shelf life, expiry date on the label

impurities

≤4.0% water

mp

288 °C (dec.) (lit.)

application(s)

cleaning products
cosmetics
food and beverages
personal care

format

neat

Quality Level

100

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General description

Light Green SF Yellowish (LGSF) is an acidic triphenylmethane (TPM) dye with auxochromic and bathochromic groups, belonging to the class of polymethine dyes. It is frequently utilized as a histology stain for collagen. Commercial applications of the dye include its usage in cosmetics and personal care products. LGSF is also a permitted food colorant. Various studies indicate the toxicity of the stain and its adverse effects on the environment.

Application

Light Green SF Yellowish may be used as a reference dye:

  • For the determination of fluoride in drinking water by spectrophotometric method.
  • To determine its presence in foodstuff by high-performance liquid chromatography–diode array detection–ion trap time-of-flight tandem mass spectrometry.

Disclaimer

Hygroscopic.

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
BCCC6247
BCBV8114
BCBV6971

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Identification and determination of 34 water-soluble synthetic dyes in foodstuff by high performance liquid chromatography-diode array detection-ion trap time-of-flight tandem mass spectrometry
Li XQ, et al.
Food Chemistry, 182(4), 316-326 (2015)
Spectrophotometric determination of fluoride in drinking water using aluminium complexes of triphenylmethane dyes
Barghouthi Z and Amereih S
Water SA , 38(4), 543-548 (2012)
Kinetic and thermodynamic study of the photocatalytic decolourization of light green SF yellowish (acid green 5) dye using commercial bulk titania and commercial nanotitania
Eesa MT, et al.
International Journal of Scientific Research, 5(11), 1495-1500 (2016)
Decoloration treatment of a hazardous triarylmethane dye, Light Green SF (Yellowish) by waste material adsorbents
Mittal A, et al.
Journal of Colloid and Interface Science, 342(2), 518-527 (2010)

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