Molekula
Azolitmin
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
Azolitmin is the principal colouring matter of litmus and is used as an acid-base indicator, appearing red in acidic and blue in alkaline solution. It is a dark red-brown to violet powder with the molecular formula C10H11N3O and a molecular weight of 189.21 g/mol. It has a CAS number of 1395-18-2 and should be stored at ambient temperatures. The substance carries a warning signal word due to potential health hazards. Molekula supplies Azolitmin 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.
-
1 g — $247.20 per pack
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 | Dark powder |
| Solubility | Completely soluble in deionised water |
| Appearance of Solution | Clear blue solution |
| Recommended Retest Date | 1 year |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90028378 |
| CAS Number | 1395-18-2 |
| IUPAC Name | 2-imino-3-methyl-1-phenylimidazolidin-4-one |
| EC Number | 215-740-1 |
| Molecular Formula | C10H11N3O |
| Molecular Weight | 189.21 |
| Exact Mass | 189.0902 |
| SMILES | CN1C(=O)CN(C1=N)C2=CC=CC=C2 |
| InChIKey | KPMDCTAAOGEIKO-UHFFFAOYSA-N |
| InChI | InChI=1S/C10H11N3O/c1-12-9(14)7-13(10(12)11)8-5-3-2-4-6-8/h2-6,11H,7H2,1H3 |
| PubChem CID | 38684 |
| REACH Code | Y110 |
| Tariff Code | 3822900000 |
Safety & GHS
-
Health Hazard
GHS07
Hazard statements
- H302 + H312 + H332 Harmful if swallowed, in contact with skin or if inhaled
- 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+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, French, German, Italian, 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
- 1-phenyl-2-imino-3-methyl-4-oxoimidazolidine
- 2-Imino-3-methyl-1-phenyl-4-imidazolidinone
- 2-imino-3-methyl-1-phenylimidazolidin-4-one
- 4-Imidazolidinone, 2-imino-3-methyl-1-phenyl-
- Azolimina
- AZOLIMINE
- Azolimine (USAN/INN)
- Azoliminum
- CL 90,748
Frequently asked questions
What is Azolitmin used for?
Azolitmin is used as an acid-base (pH) indicator. It is red in acidic solution and blue in alkaline solution, with a transition range of roughly pH 4.5 to 8.3, and is used in preparing litmus indicator solutions and papers.
What is the chemical formula and molecular weight of Azolitmin?
The chemical formula of Azolitmin is C10H11N3O, with a molecular weight of 189.21 g/mol.
How should Azolitmin be stored?
Azolitmin should be stored at ambient temperature, protected from moisture and light.
What grade of Azolitmin is available?
Azolitmin is available in technical grade; custom purity levels may be requested.
Can Molekula supply Azolitmin in bulk?
Yes, Molekula can supply Azolitmin in bulk quantities—please contact sales for pricing and availability.
What documentation comes with an order of Azolitmin?
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.