Molekula
Glyoxal bis(2-hydroxyanil)
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
Glyoxal bis(2-hydroxyanil) is a Schiff base analytical reagent used as a metal indicator and chromogenic reagent for the detection and determination of calcium and other metal ions such as cadmium. It is a yellow crystalline solid with a molecular weight of 240.26 g/mol, formulated as (C6H4(OH)NCH)2. It has a CAS number of 1149-16-2 and should be stored at ambient temperature. The substance is classified with a warning signal word due to its potential hazards. Molekula supplies Glyoxal bis(2-hydroxyanil) 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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10 g — £31.30 per pack ex VAT · £37.56 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 | Off-white to beige to light yellow powder |
| Assay/Purity | ≥ 98.0% |
| Melting Point | 194.0 -198.0°C |
| Residue on Ignition | ≤ 0.1% |
| Identification (IR) | Conforms to Reference |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 89967412 |
| CAS Number | 1149-16-2 |
| IUPAC Name | 2-[2-(2-hydroxyphenyl)iminoethylideneamino]phenol |
| EC Number | 214-560-0 |
| Molecular Formula | (C6H4(OH)NCH)2 |
| Molecular Weight | 240.26 |
| Exact Mass | 240.0899 |
| SMILES | C1=CC=C(C(=C1)N=CC=NC2=CC=CC=C2O)O |
| InChIKey | FZKAPSZEPRQQGK-UHFFFAOYSA-N |
| InChI | InChI=1S/C14H12N2O2/c17-13-7-3-1-5-11(13)15-9-10-16-12-6-2-4-8-14(12)18/h1-10,17-18H |
| PubChem CID | 96335 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29252960 |
| Tariff Code | 2925290090 |
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
- 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
- 2,2'-(Ethane-1,2-diylidenebis(azanylylidene))diphenol
- 2,2'-(Ethanediylidenedinitrilo)bisphenol
- 2,2'-(Ethanediylidenedinitrilo)diphenol
- di(2-Hydroxyphenylimino)ethane
- GBHA
- Glyoxal bis(2-hydroxyaniline)
- Glyoxal bis(o-hydroxyanil)
- Glyoxylidenebis(2-hydroxyaniline)
- Phenol, 2,2'-(1,2-ethanediylidenedinitrilo)bis-
- Phenol, 2,2'-(ethanediylidenedinitrilo)di-
Frequently asked questions
What is Glyoxal bis(2-hydroxyanil) used for?
It is primarily used as an analytical reagent, serving as a metal indicator and chromogenic reagent for detecting and determining calcium and other metal ions such as cadmium.
What is the chemical formula and molecular weight?
The formula is (C6H4(OH)NCH)2 with a molecular weight of 240.26 g/mol.
How should Glyoxal bis(2-hydroxyanil) be stored?
It should be stored at ambient temperature, protected from moisture and light.
What grade is available?
Available in technical grade; custom purity options may be available upon request.
Can Molekula supply it in bulk?
Yes, Molekula can supply Glyoxal bis(2-hydroxyanil) in bulk quantities—please contact sales for details.
What documentation comes with the order?
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.