Molekula
Basic Yellow 40
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
Basic Yellow 40 is a synthetic organic dye used in textile, paper, and plastic coloring applications. It is a chloride salt with the molecular formula C22H24N3O2Cl and a molecular weight of 397.90 g/mol. It has a CAS number of 12221-86-2 and should be stored at ambient temperatures. The substance carries a warning signal word due to potential health hazards. Molekula supplies Basic Yellow 40 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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25 g — £62.60 per pack ex VAT · £75.12 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 |
| Identification | Conforms to reference |
| Strength | 100% +/-5% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 55618603 |
| CAS Number | 12221-86-2 |
| IUPAC Name | 7-(diethylamino)-3-(1,3-dimethylbenzimidazol-3-ium-2-yl)chromen-2-one chloride |
| EC Number | 249-694-9 |
| Molecular Formula | C22H24N3O2.Cl |
| Molecular Weight | 397.90 |
| Exact Mass | 397.1557 |
| SMILES | CCN(CC)C1=CC2=C(C=C1)C=C(C(=O)O2)C3=[N+](C4=CC=CC=C4N3C)C.[Cl-] |
| InChIKey | LCVNGSHJQQOSDB-UHFFFAOYSA-M |
| InChI | InChI=1S/C22H24N3O2.ClH/c1-5-25(6-2)16-12-11-15-13-17(22(26)27-20(15)14-16)21-23(3)18-9-7-8-10-19(18)24(21)4;/h7-14H,5-6H2,1-4H3;1H/q+1;/p-1 |
| PubChem CID | 169053 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29251942 |
| Tariff Code | 2925199590 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+330 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting
- 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
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Russian, 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
- 7-(diethylamino)-3-(1,3-dimethylbenzimidazol-3-ium-2-yl)chromen-2-one;chloride
- Amarelo Basico 40
- Basic Yellow XL
- Basico Amarillo 40
- C.I. Basic Yellow 40
- CATIONIC
- Coumarin40
- Flavine 10GFF
- Fluorescent yellow 10GFF
- Jaune basique 40
Frequently asked questions
What is Basic Yellow 40 used for?
Basic Yellow 40 is primarily used as a dye in textiles, plastics, and coatings for its bright yellow color.
What is the chemical formula and molecular weight of Basic Yellow 40?
The formula is C22H24N3O2·Cl and the molecular weight is 397.90 g/mol.
How should Basic Yellow 40 be stored?
It should be stored at ambient temperature, away from moisture and direct sunlight.
What grade of Basic Yellow 40 is available?
Molekula supplies Basic Yellow 40 in technical grade.
Can Molekula supply Basic Yellow 40 in bulk?
Yes, Molekula can supply Basic Yellow 40 in bulk quantities upon request.
What documentation comes with a Basic Yellow 40 order?
Each order includes a Certificate of Analysis and Safety Data Sheet (SDS).
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.