Molekula
Azocarmine G
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
Azocarmine G is a synthetic azine (benzo[a]phenazinium) dye used primarily in histology for staining connective tissues and in microbiology for differential staining. It is a sodium salt with the molecular formula C28H18N3NaO6S2 and a molecular weight of 579.58 g/mol. CAS number: 25641-18-3. Store at ambient temperature. Signal word: Warning. Molekula supplies Azocarmine G 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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5 g — £77.60 per pack ex VAT · £93.12 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.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Brown, red or purple powder |
| Solubility in water | Soluble in water |
| Absorption maximum in water | 510 - 523 nm |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 10574823 |
| CAS Number | 25641-18-3 |
| IUPAC Name | sodium 7-phenyl-5-(4-sulfonatoanilino)benzo[a]phenazin-7-ium-3-sulfonate |
| Molecular Formula | C28H18N3NaO6S2 |
| Molecular Weight | 579.58 |
| Exact Mass | 579.0535 |
| SMILES | C1=CC=C(C=C1)[N+]2=C3C=C(C4=C(C3=NC5=CC=CC=C52)C=CC(=C4)S(=O)(=O)[O-])NC6=CC=C(C=C6)S(=O)(=O)[O-].[Na+] |
| InChIKey | LUERODMRBLNCFK-UHFFFAOYSA-M |
| InChI | InChI=1S/C28H19N3O6S2.Na/c32-38(33,34)20-12-10-18(11-13-20)29-25-17-27-28(22-15-14-21(16-23(22)25)39(35,36)37)30-24-8-4-5-9-26(24)31(27)19-6-2-1-3-7-19;/h1-17H,(H2,32,33,34,35,36,37);/q;+1/p-1 |
| PubChem CID | 16046101 |
| REACH Code | Y113 |
| HTS Code | 32129000 |
| Tariff Code | 3212900000 |
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
- 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+341 IF INHALED: If breathing is difficult, 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.
Synonyms
- 7-phenyl-5-[(4-sulfophenyl)amino]benzo[a]phenazine-3-sulfonic acid, sodium sal t
- Acid Red 101
- azocarmin G
- C.I. 50085
- C28H18N3NaO6S2
- LUERODMRBLNCFK-UHFFFAOYSA-M
- Sodium 7-phenyl-5-((4-sulfonatophenyl)amino)benzo[a]phenazin-7-ium-3-sulfonate
- sodium 7-phenyl-5-(4-sulfonatoanilino)benzo[a]phenazin-7-ium-3-sulfonate
Frequently asked questions
What is Azocarmine G used for?
Azocarmine G is primarily used as a pH indicator and dye in analytical chemistry and biological staining applications.
What is the chemical formula and molecular weight of Azocarmine G?
The formula is C28H18N3NaO6S2 with a molecular weight of 579.58 g/mol.
How should Azocarmine G be stored?
Store at ambient temperature, protected from light and moisture.
What grade of Azocarmine G is available?
Available in analytical grade for laboratory use.
Can Molekula supply Azocarmine G in bulk?
Yes, Molekula can supply Azocarmine G in bulk quantities—please contact sales for details.
What documentation comes with an order of Azocarmine G?
Each order includes a Certificate of Analysis (CoA) 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.