Molekula
Fast Garnet GBC Salt
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
Fast Garnet GBC Salt is a diazonium salt, 2-methyl-4-(o-tolylazo)benzenediazonium hydrogen sulfate, used as a coupling agent in enzyme histochemistry, for example to visualize esterase, acid phosphatase or alkaline phosphatase activity with naphthol substrates. It is an aminoazotoluene-derived benzenediazonium compound (an azo/diazonium compound) supplied as the hydrogen sulfate salt, in which the sulfate is the counter-ion. CAS: 101-89-3, Molecular Formula: C14H13N4.HO4S, Molecular Weight: 334.35 g/mol. Store at 2 to 8 °C. Signal word: Danger.
Molekula supplies Fast Garnet GBC Salt in 25 g packs, from £111.96 inc. VAT. It is in stock for same-day dispatch. Every batch ships with a certificate of analysis, and safety data sheets are available in 6 languages. Larger quantities, up to multi-tonne, are quoted on request.
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.
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 — £93.30 per pack ex VAT · £111.96 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 | Red to Brown Powder |
| Identification | Conforms to reference |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
Identification
| Property | Value |
|---|---|
| SKU | 35517686 |
| CAS Number | 101-89-3 |
| IUPAC Name | hydrogen sulfate;2-methyl-4-[(2-methylphenyl)diazenyl]benzenediazonium |
| EC Number | 202-985-4 |
| Molecular Formula | C14H13N4.HO4S |
| Molecular Weight | 334.35 |
| Exact Mass | 334.0736 |
| SMILES | CC1=CC=CC=C1N=NC2=CC(=C(C=C2)[N+]#N)C.OS(=O)(=O)[O-] |
| InChIKey | PPTXFSQSISUDAU-UHFFFAOYSA-M |
| InChI | InChI=1S/C14H13N4.H2O4S/c1-10-5-3-4-6-14(10)18-17-12-7-8-13(16-15)11(2)9-12;1-5(2,3)4/h3-9H,1-2H3;(H2,1,2,3,4)/q+1;/p-1 |
| PubChem CID | 66872 |
| REACH Code | Y110 |
| HTS Code | 2927003000 |
| Tariff Code | 2927000090 |
Safety & GHS
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Serious Health Hazard
GHS08
Hazard statements
- H350 May cause cancer
Precautionary statements
- P201 Obtain special instructions before use
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P308+313 IF exposed or concerned: Get medical advice/attention
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
- (E)-2-methyl-4-(o-tolyldiazenyl)benzenediazonium hydrogen sulfate
- 2-Methyl-4-(o-tolylazo)benzenediazonium hydrogen sulphate
- 2-Methyl-4-[(2-methylphenyl)diazenyl]benzene-1-diazonium hydrogen sulfate
- Benzenediazonium, 2-methyl-4-[2-(2-methylphenyl)diazenyl]-, sulfate (1:1)
- Fast Garnet GBC sulfate salt
- Fast Garnet GBC sulfate salt, diazonium dye
- garnet gbc salt
- hydrogen sulfate;2-methyl-4-(o-tolylazo)benzenediazonium
- hydrogen sulfate;2-methyl-4-[(2-methylphenyl)diazenyl]benzenediazonium
- PPTXFSQSISUDAU-UHFFFAOYSA-M
Frequently asked questions
What is Fast Garnet GBC Salt used for?
It is used as a diazonium coupling reagent for histochemical enzyme staining. It couples with naphthols released by enzyme activity to form coloured azo dyes, for example to visualize esterase, acid phosphatase or alkaline phosphatase activity.
What is the chemical formula and molecular weight of Fast Garnet GBC Salt?
The formula is C14H13N4.HO4S with a molecular weight of 334.35 g/mol.
How should Fast Garnet GBC Salt be stored?
It should be stored at temperatures between 2 to 8 °C to maintain stability and prevent degradation.
What grade of Fast Garnet GBC Salt does Molekula supply?
The specification does not state a grade or purity. Molekula supplies Fast Garnet GBC Salt as a red to brown powder whose identification conforms to reference.
Can Molekula supply Fast Garnet GBC Salt in bulk?
Yes, Molekula can supply Fast Garnet GBC Salt in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with an order of Fast Garnet GBC Salt?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS), compliant with GHS standards.
Where can I buy Fast Garnet GBC Salt?
Directly from Molekula, which lists Fast Garnet GBC Salt in 25 g packs from £111.96 inc. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
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.