Light green

Name: Light green
Brand: Vaqora Chemicals
SKU: VQ-000609

About Light green

Light green is a biological stain (Microscopy grade) carrying the CAS registry number 5141-20-8. Formula C37H34N2Na2O9S3, molecular weight 792.9 g/mol. Common synonyms include Light Green SF Yellowish and Acid Green 5.

It is supplied as a dark red to purple powder. Keep the container tightly sealed and store it in a cool, dry area. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

Key uses span histology and cytology staining, microscopy and clinical laboratories. It is used across academic and industrial research, diagnostics and biotechnology and textiles and dyeing.

Vaqora Chemicals supplies Light green in 25 g, 100 g, 1 kg and 5 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide. SDS and detailed specification sheets can be requested with your quotation.

Typical applications

Histology & cytology staining
Microscopy
Clinical laboratories

Industries

Specifications & identifiers

Chemical identifiers
Product name	Light green
Catalogue No.	VQ-000609
CAS Number	5141-20-8
IUPAC name	disodium;3-[[N-ethyl-4-[[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]cyclohexa-2,5-dien-1-ylidene]-(4-sulfonatophenyl)methyl]anilino]methyl]benzenesulfonate
Molecular formula	C₃₇H₃₄N₂Na₂O₉S₃
Molecular weight	792.9 g/mol
Exact mass	792.1222
Grade	Microscopy
HSN code	32041216
InChIKey	DGOBMKYRQHEFGQ-UHFFFAOYSA-L
SMILES	CCN(CC1=CC(=CC=C1)S(=O)(=O)[O-])C2=CC=C(C=C2)C(=C3C=CC(=[N+](CC)CC4=CC(=CC=C4)S(=O)(=O)[O-])C=C3)C5=CC=C(C=C5)S(=O)(=O)[O-].[Na+].[Na+]
PubChem CID	21223

Physical properties
Physical form	Powder
Appearance	Dark red to purple powder
H-bond donors / acceptors	0 / 10
TPSA	203 Å²
Synonyms	Light Green SF Yellowish, Acid Green 5, C.I. Acid Green 5, A F Green No.2, D&C Green No. 2, C.I. Food Green 2, FD&C Green No. 2, D And C Green No. 4, FD And C Green No. 2-Aluminum Lake, D&C Green No. 4, Lissamine Green SF, Pencil Green SF

Safety & hazard information (GHS)

Health hazard

Signal word: Warning

Hazard statements

H351Suspected of causing cancer

Precautionary statements: P203, P280, P318, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 5141-20-8

Microscopy

Light green SF yellowish

CAS: 5141-20-8
Formula: C₃₇H₃₄N₂Na₂O₉S₃
MW: 792.9 g/mol

VQ-000610

AR

Light green, AR

CAS: 5141-20-8
Formula: C₃₇H₃₄N₂Na₂O₉S₃
MW: 792.9 g/mol

VQ-045919

Frequently asked questions

What is the CAS number of Light green?

The CAS Registry Number of Light green is 5141-20-8. It is also known as Light Green SF Yellowish, Acid Green 5, C.I. Acid Green 5.

What is the molecular formula and molecular weight of Light green?

Light green has the molecular formula C37H34N2Na2O9S3 and a molecular weight of 792.9 g/mol.

Which grade and pack sizes of Light green can I order?

We supply Light green in Microscopy grade, in 25 g, 100 g, 1 kg, 5 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Light green?

Yes. Every lot of Light green is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Light green be shipped internationally?

Yes. Light green is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.