Molekula
Alphazurine A (Acid Blue 7)
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
Alphazurine A (Acid Blue 7) is a synthetic anionic dye used in textile and paper dyeing, as well as in analytical chemistry and research applications. It is a sodium salt with the molecular formula C37H35N2NaO6S2 and a molecular weight of 690.80 g/mol. CAS number: 3486-30-4. Stable at ambient storage conditions. No signal word required. Molekula supplies Alphazurine A (Acid Blue 7) 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 — £41.90 per pack ex VAT · £50.28 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 | Bluish to Maroon to Dark Purple Powder |
| Loss on Drying | ≤ 5% |
| Solubility | Clear to Opaque, Dark Blue Solution |
| Identification (IR) | Conforms to structure |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90005052 |
| CAS Number | 3486-30-4 |
| IUPAC Name | sodium 4-[[4-[benzyl(ethyl)amino]phenyl]-[4-[benzyl(ethyl)azaniumylidene]cyclohexa-2,5-dien-1-ylidene]methyl]benzene-1,3-disulfonate |
| EC Number | 222-476-0 |
| Molecular Formula | C37H35N2NaO6S2 |
| Molecular Weight | 690.80 |
| Exact Mass | 690.1834 |
| SMILES | CCN(CC1=CC=CC=C1)C2=CC=C(C=C2)C(=C3C=CC(=[N+](CC)CC4=CC=CC=C4)C=C3)C5=C(C=C(C=C5)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+] |
| InChIKey | FTUYQIPAPWPHNC-UHFFFAOYSA-M |
| InChI | InChI=1S/C37H36N2O6S2.Na/c1-3-38(26-28-11-7-5-8-12-28)32-19-15-30(16-20-32)37(35-24-23-34(46(40,41)42)25-36(35)47(43,44)45)31-17-21-33(22-18-31)39(4-2)27-29-13-9-6-10-14-29;/h5-25H,3-4,26-27H2,1-2H3,(H-,40,41,42,43,44,45);/q;+1/p-1 |
| PubChem CID | 62498 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 3212.90.0050 |
| Tariff Code | 3212900000 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
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
- Acid blue 7
- Acid Sky Blue O
- Acid Turquoise Blue A
- Carmine Blue AF
- Erio Glaucine X
- Fenazo bluexg
- Hidacid Blue A
- Hidacid Blue AF
- Patent Blue A
- Patent Blue AF
Frequently asked questions
What is Alphazurine A (Acid Blue 7) used for?
Alphazurine A is primarily used as a dye in textile and leather coloring, and as a pH indicator in analytical chemistry.
What is the chemical formula and molecular weight of Alphazurine A?
The formula is C37H35N2NaO6S2 with a molecular weight of 690.80 g/mol.
How should Alphazurine A be stored?
It should be stored at ambient temperature, protected from moisture and direct sunlight.
What grade of Alphazurine A is available?
Molekula supplies Alphazurine A in technical grade for industrial and research applications.
Can Molekula supply Alphazurine A in bulk?
Yes, Molekula can supply Alphazurine A in bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with an order of Alphazurine A?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) 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.