Molekula
Light Green SF Yellowish
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Light Green SF Yellowish is a synthetic organic dye used in textile, paper, and plastic coloring applications. It is a sodium salt of a triphenylmethane derivative with high color strength and stability. It is widely used as a biological stain, notably a standard collagen stain in histology and in plant tissue work, and for dyeing wool, silk, nylon and leather. Available in powder form, it has a CAS number of 5141-20-8, a molecular formula of C37H34N2Na2O9S3, and a molecular weight of 792.86 g/mol. Store at ambient temperatures. Signal word: Warning.
Molekula supplies Light Green SF Yellowish in 25 g and 100 g packs, from £92.88 inc. VAT. It is in stock for same-day dispatch. Every batch ships with a certificate of analysis, and safety data sheets are available in 6 languages. Larger quantities, up to multi-tonne, are quoted on request.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
In stock — same-day dispatch
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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25 g — £77.40 per pack ex VAT · £92.88 inc. VAT
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100 g — £223.00 per pack ex VAT · £267.60 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Deep purple powder |
| Solubility | Soluble in water to give a clear green solution |
| Dye Content | ≥80% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Deep-purple powder |
| Melting Point | 288 °C (decomposes) |
Source: PubChem CID 21223 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 15349285 |
| 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 |
| EC Number | 225-906-5 |
| Molecular Formula | C37H34N2Na2O9S3 |
| Molecular Weight | 792.86 |
| Exact Mass | 792.1222 |
| 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+] |
| InChIKey | DGOBMKYRQHEFGQ-UHFFFAOYSA-L |
| InChI | 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 |
| PubChem CID | 21223 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 32129000 |
| Tariff Code | 3212900000 |
Safety & GHS
-
Health Hazard
GHS07
Hazard statements
- H340 May cause genetic defects
- H351 Suspected of causing cancer
Precautionary statements
- P201 Obtain special instructions before use
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P263 Avoid contact during pregnancy/while nursing
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- A F Green No.2
- Acid Green 5
- C.I. 42095
- C.I. Acid Green 5
- C.I. ACID GREEN 5, DISODIUM SALT
- C.I. Food Green 2
- D And C Green No. 4
- D&C Green No. 2
- FD And C Green No. 2-Aluminum Lake
- FD&C Green No. 2
Frequently asked questions
What is Light Green SF Yellowish used for?
It is primarily used as a dye in textiles, paper, and cosmetics due to its vibrant yellowish-green color.
What is the chemical formula and molecular weight of Light Green SF Yellowish?
The formula is C37H34N2Na2O9S3 with a molecular weight of 792.86 g/mol.
How should Light Green SF Yellowish be stored?
It should be stored at ambient temperature, protected from moisture and direct sunlight.
What grade of Light Green SF Yellowish is available?
Molekula supplies Light Green SF Yellowish as a deep purple powder with a dye content of at least 80%, soluble in water to give a clear green solution.
Can Molekula supply Light Green SF Yellowish in bulk?
Yes, Molekula can supply Light Green SF Yellowish in bulk quantities upon request.
What documentation comes with an order of Light Green SF Yellowish?
Each order includes a Certificate of Analysis and Safety Data Sheet (SDS) with the shipment.
Where can I buy Light Green SF Yellowish?
Directly from Molekula, which lists Light Green SF Yellowish in 25 g and 100 g packs from £92.88 inc. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.