Molekula
Solvent Yellow 98
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Solvent Yellow 98 is a high-performance organic dye used primarily in inks, coatings, and plastics for its bright yellow coloration and excellent lightfastness. It is a non-toxic, non-hazardous thioxanthene-based naphthalimide dye (2-octadecyl-1H-thioxantheno[2,1,9-def]isoquinoline-1,3(2H)-dione, C.I. 56238) that provides vibrant, stable hues in solvent-based applications. This product has a CAS number of 12671-74-8, a molecular formula of C36H45NO2S, and a molecular weight of 555.81. It can be stored safely at ambient conditions without requiring special precautions. Molekula supplies Solvent Yellow 98 from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
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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1 g — £51.20 per pack ex VAT · £61.44 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 | Yellow powder |
| Melting Point | 267°C |
| Water | ≤1.0% |
| Ash | ≤0.3% |
| Identification | Conforms to reference |
| Strength | (Tinctorial) 98 - 102% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90020999 |
| CAS Number | 12671-74-8 |
| IUPAC Name | 14-octadecyl-8-thia-14-azapentacyclo[10.6.2.02,7.09,19.016,20]icosa-1(19),2,4,6,9,11,16(20),17-octaene-13,15-dione |
| EC Number | 248-702-8 |
| Molecular Formula | C36H45NO2S |
| Molecular Weight | 555.81 |
| Exact Mass | 555.3171 |
| SMILES | CCCCCCCCCCCCCCCCCCN1C(=O)C2=C3C(=CC=C4C3=C(C=C2)C5=CC=CC=C5S4)C1=O |
| InChIKey | YDQLECBCTASDOZ-UHFFFAOYSA-N |
| InChI | InChI=1S/C36H45NO2S/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-19-26-37-35(38)29-23-22-28-27-20-17-18-21-31(27)40-32-25-24-30(36(37)39)33(29)34(28)32/h17-18,20-25H,2-16,19,26H2,1H3 |
| PubChem CID | 119733 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 3204.19.2090 |
| Tariff Code | 3204190077 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
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.
Synonyms
- (27870-92-4) solvent yellow 98
- 1,9-def]isoquinoline-1,3(2h)-dione, 2-octadecyl-1h-thioxantheno[
- 1H-Thioxantheno[2,1,9-def]isoquinoline-1,3(2H)-dione, 2-octadecyl-
- 2-Octadecyl-1H-benzo[3,4][2]benzothiopyrano[7,8,1-def]isoquinoline-1,3(2H)-dione
- 2-Octadecyl-1H-thioxantheno[2,1,9-def]isoquinoline-1,3(2H)-dione
- C.I. 56238
- Fluorescent Yellow 3G
- solvent yellow 98 (c.i. 56238)
- YDQLECBCTASDOZ-UHFFFAOYSA-N
Frequently asked questions
What is Solvent Yellow 98 used for?
Solvent Yellow 98 is primarily used as a dye in plastics, inks, coatings, and adhesives for vibrant yellow coloring.
What is the chemical formula and molecular weight of Solvent Yellow 98?
The chemical formula is C₃₆H₄₅NO₂S, and the molecular weight is 555.81 g/mol.
How should Solvent Yellow 98 be stored?
Store at ambient temperature in a cool, dry place, away from direct sunlight and incompatible substances.
What grades or purity levels of Solvent Yellow 98 does Molekula supply?
Molekula supplies technical-grade Solvent Yellow 98, meeting standard industrial dye specifications.
Can Molekula supply Solvent Yellow 98 in bulk quantities?
Yes, Molekula can provide bulk quantities of Solvent Yellow 98 upon request, with flexible packaging options.
What documentation comes with an order of Solvent Yellow 98?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation.
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.