Molekula
8-Ethoxyquinoline-5-sulfonic acid
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
8-Ethoxyquinoline-5-sulfonic acid is a heterocyclic organic compound used in pharmaceutical synthesis and as an intermediate in dye and agrochemical production. It appears as a crystalline solid with a molecular formula of C11H11NO4S and a molecular weight of 253.3 g/mol. It is stable at ambient temperature and should be stored under normal conditions. The substance is classified with a warning signal word due to potential health hazards. Molekula supplies 8-Ethoxyquinoline-5-sulfonic acid 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
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.
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5 g — £30.90 per pack ex VAT · £37.08 inc. VAT
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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.
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Specifications
| Property | Value |
|---|---|
| Appearance | White to Cream to Yellow crystalline powder |
| Melting Point | 298℃ |
| Identification | Conforms to reference |
| Assay (aqueous acid-base titration) | ≥98.5 to ≤101.5% |
| Water (KF) | ≤9.64% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 89968240 |
| CAS Number | 15301-40-3 |
| IUPAC Name | 8-ethoxyquinoline-5-sulfonic acid |
| EC Number | 239-334-9 |
| Molecular Formula | C11H11NO4S |
| Molecular Weight | 253.3 |
| Exact Mass | 253.0409 |
| SMILES | CCOC1=C2C(=C(C=C1)S(=O)(=O)O)C=CC=N2 |
| InChIKey | YAMVZYRZAMBCED-UHFFFAOYSA-N |
| InChI | InChI=1S/C11H11NO4S/c1-2-16-9-5-6-10(17(13,14)15)8-4-3-7-12-11(8)9/h3-7H,2H2,1H3,(H,13,14,15) |
| PubChem CID | 23674 |
| REACH Code | Y113 |
| HTS Code | 2933.49.7000 |
| Tariff Code | 2933499090 |
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+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P302+P352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- 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, 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
- 5-Quinolinesulfonic acid, 8-ethoxy-
- 8-Ethoxy-5-chinolinsulfonsaeure
- 8-Ethoxy-5-quinolinesulfonic acid
- actinochinolo
- Actinochinolum
- Actinoquinol
- Actinoquinolum
- starbld0009277
- YAMVZYRZAMBCED-UHFFFAOYSA-N
Frequently asked questions
What is 8-Ethoxyquinoline-5-sulfonic acid used for?
It is primarily used as an intermediate in the synthesis of dyes and pharmaceuticals, and as a UV-absorbing agent, for example in ophthalmic preparations.
What is the chemical formula and molecular weight?
The formula is C11H11NO4S with a molecular weight of 253.3 g/mol.
How should this compound be stored?
Store at ambient temperature, protected from moisture and light.
What grade is available?
Available in technical grade; custom purity options may be available upon request.
Can Molekula supply this in bulk?
Yes, Molekula can supply 8-Ethoxyquinoline-5-sulfonic acid in bulk quantities—please contact us for pricing and availability.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation can be provided upon request.
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.