Skip to Content
Merck
CN

Key Documents

View All Documentation

L5382

Light Green SF Yellowish

crystalline

Synonym(s):

Acid Green 5

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Linear Formula:
C37H34N2O9S3Na2
CAS Number:
5141-20-8
Molecular Weight:
792.85
UNSPSC Code:
12171500
NACRES:
NA.47
PubChem Substance ID:
24896400
EC Number:
225-906-5
MDL number:
MFCD00012121
Beilstein/REAXYS Number:
5717828
Colour Index Number:
42095
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

Light Green SF Yellowish, powder or crystals

form

powder or crystals

Quality Segment

100

technique(s)

titration: suitable

color

dark red to purple

mp

288 °C (dec.) (lit.)

solubility

water: 10 mg/mL, clear

εmax

>600 at 631-634 nm in water

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

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

General description

Light green SF yellowish (LGSFY) is a disodium salt of an acid triphenylmethane dye. It is also known as Light Green, Lissamine Green SF, Food Green 2, Green No. 205, Acid Green, Acid Brilliant Green 5, and Acid Brilliant Green SF. LGSFY is an important component of Papanicolaou stains in addition to eosin Y and bismark brown Y. Light green SF yellowish is a histological stain for collagen and a permitted colorant for foodstuffs and beverages.

Application

Light green SF is generally used as a cytoplasmic counterstain with nuclear stains like safranine and Feulgen stain. In histopatology, it is used for collagen fiber staining in Masson′s trichrome, Papanicolaou cytological polychrome stains, and Twort stain for microorganisms in tissue sections. It is a constituent of polychrome staining method used for differentiating secretory cells of the pituitary gland. Light green SF also stains the cellulose cell walls of plant cells.

Still not finding the right product?

Explore all of our products under Light Green SF Yellowish

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Documents section.

If you need assistance, please contact Customer Support

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library