Skip to content
Molekula

Molekula

5-Hydroxyindole

SKU 46729766 CAS 1953-54-4 C8H7NO MW 133.15 Made to order Bulk quantities on request

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

5-Hydroxyindole is a heterocyclic organic compound used in pharmaceutical research and the synthesis of bioactive molecules. It serves as an intermediate in the production of serotonin analogs and other medicinal compounds. Available with a CAS number of 1953-54-4, its molecular formula is C8H7NO and molecular weight is 133.15 g/mol. Store at 2 to 8 °C. Signal word: Warning. Molekula supplies 5-Hydroxyindole from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

Expect a response within hours Speak to a chemist: +44 (0) 3302 000333

Example image for illustration only. Other packaging and pack sizes are available.

Pricing & pack sizes

Pack sizes & pricing

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.

  • 1 g — £49.20 per pack ex VAT · £59.04 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.

Quantity
Unit
Needed by
Full name
Email
Company
Phone (optional)
Notes

Expect a response within hours

Prices exclude VAT/sales tax and shipping.

Specifications

Property Value
Appearance Solid

Storage & handling

Property Value
Storage Temperature 2 to 8 °C
Acidity Neutral

Identification

Property Value
SKU 46729766
CAS Number 1953-54-4
IUPAC Name 1H-indol-5-ol
EC Number 217-782-6
Molecular Formula C8H7NO
Molecular Weight 133.15
Exact Mass 133.0528
SMILES C1=CC2=C(C=CN2)C=C1O
InChIKey LMIQERWZRIFWNZ-UHFFFAOYSA-N
InChI InChI=1S/C8H7NO/c10-7-1-2-8-6(5-7)3-4-9-8/h1-5,9-10H
PubChem CID 16054
REACH Code Y113
HTS Code 29339979
Tariff Code 2933998090

Safety & GHS

Warning
  • GHS pictogram — Health Hazard 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
  • P264 Wash thoroughly after handling
  • P280 Wear protective gloves/protective clothing/eye protection/face protection
  • P302+352 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.

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

  • 1H-Indol-5-ol
  • 1H-Indol-5-ol; Indol-5-ol; 5-Hydroxy-1H-indole; NSC 87503;
  • 1h-indole-5-ol
  • 3fuh
  • 5-Hydroxy-1H-indole
  • 5-hydroxy-indol
  • 5-hydroxylindole
  • 5-Indolol
  • Hydroxy-5 indole
  • INDOL-5-OL

Frequently asked questions

What is 5-Hydroxyindole used for?

It is primarily used as an intermediate in the synthesis of pharmaceuticals and specialty chemicals, particularly in research related to serotonin analogs.

What is the chemical formula and molecular weight of 5-Hydroxyindole?

The formula is C8H7NO with a molecular weight of 133.15 g/mol.

How should 5-Hydroxyindole be stored?

It should be stored at 2 to 8 °C, protected from light and moisture.

What grade of 5-Hydroxyindole does Molekula supply?

We supply 5-Hydroxyindole in research-grade quality, suitable for laboratory use.

Can Molekula supply 5-Hydroxyindole in bulk quantities?

Yes, we can supply 5-Hydroxyindole in bulk; please contact our sales team for volume pricing and availability.

What documentation comes with my order of 5-Hydroxyindole?

Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.

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.

Talk to a chemist
Documents Pricing
Request a quote
Tell us the product and the quantity you need — including quantities larger than our listed packs. Expect a response within hours.
Full name
Company
Email
Phone (optional)
Product
Quantity needed

Ask for whatever you actually need — the pack sizes on our catalogue pages are a starting point, not a limit.

Message
View basket