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67402 Supelco

Light Green SF Yellowish

analytical standard

Synonym: Acid Green 5

  • CAS Number 5141-20-8

  • Linear Formula C37H34N2O9S3Na2

  • Molecular Weight 792.85

  •  Colour Index Number 42095

  •  Beilstein/REAXYS Number 5717828

  •  EC Number 225-906-5

  •  MDL number MFCD00012121

  •  PubChem Substance ID 329760576

  •  NACRES NA.24

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Properties

Related Categories All Alphabetically Sorted, Analytical Standards, Analytical/Chromatography, Food & Beverage Standards, Food Color Additives,
Quality Level   100
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.)
Featured Industry   Cleaning Products
Cosmetics
Food and Beverages
Personal Care
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
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

Description

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.

Caution

Hygroscopic.

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 2
RTECS 
BQ4900000
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Protocols & Articles
Peer-Reviewed Papers
15

References

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