Molekula
o-Cresolphthalein Complexone
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
o-Cresolphthalein Complexone is a chelating agent and analytical reagent primarily used in complexometric titrations and as an indicator in water hardness testing. It forms stable complexes with metal ions, aiding in precise quantitative analysis. CAS 2411-89-4, molecular formula C32H32N2O12, molecular weight 636.62 g/mol. Store at ambient conditions. Non-hazardous (no signal word). Molekula supplies o-Cresolphthalein Complexone from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
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Pricing & pack sizes
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5 g — £62.10 per pack ex VAT · £74.52 inc. VAT
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Specifications
| Property | Value |
|---|---|
| Appearance | White to off-white powder |
| Loss on Drying | ≤ 10.0% |
| Solubility | Clear purple solution |
| Carbon (C) | 58 - 63% |
| Residue on Ignition | ≤ 0.5% |
| Lambda max | 561 to 581nm (0.1N sodium hydroxide aq.) |
| Nitrogen (N) | 4.1 - 4.7% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 20195051 |
| CAS Number | 2411-89-4 |
| IUPAC Name | 2-[[5-[1-[3-[[bis(carboxymethyl)amino]methyl]-4-hydroxy-5-methylphenyl]-3-oxo-2-benzofuran-1-yl]-2-hydroxy-3-methylphenyl]methyl-(carboxymethyl)amino]acetic acid |
| EC Number | 219-318-8 |
| Molecular Formula | C32H32N2O12 |
| Molecular Weight | 636.62 |
| Exact Mass | 636.1955 |
| SMILES | CC1=CC(=CC(=C1O)CN(CC(=O)O)CC(=O)O)C2(C3=CC=CC=C3C(=O)O2)C4=CC(=C(C(=C4)C)O)CN(CC(=O)O)CC(=O)O |
| InChIKey | IYZPEGVSBUNMBE-UHFFFAOYSA-N |
| InChI | InChI=1S/C32H32N2O12/c1-17-7-21(9-19(29(17)43)11-33(13-25(35)36)14-26(37)38)32(24-6-4-3-5-23(24)31(45)46-32)22-8-18(2)30(44)20(10-22)12-34(15-27(39)40)16-28(41)42/h3-10,43-44H,11-16H2,1-2H3,(H,35,36)(H,37,38)(H,39,40)(H,41,42) |
| PubChem CID | 75485 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29322045 |
| Tariff Code | 2932209090 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
Documents
Safety Data Sheets (SDS)
Available in Dutch, 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-Cresolphthalexon
- 3,3'-Bis(N,N-di(carboxymethyl)aminomethyl)-o-cresolphthalein
- 3,N-di(carbox
- Cresolphthalexon
- metalphthalein
- o-Cresolphthalexon
- O-Cresolphthalexone
- ortho-cresolphthalexon
- Phthalate complexing agent
- Phthalein purple
Frequently asked questions
What is o-Cresolphthalein Complexone typically used for?
It is primarily used as a **chelating agent** and **indicator** in analytical chemistry, particularly for titrations involving metal ions like calcium and magnesium.
What is the chemical formula and molecular weight of o-Cresolphthalein Complexone?
The chemical formula is **C₃₂H₃₂N₂O₁₂**, and the molecular weight is **636.62 g/mol**.
How should o-Cresolphthalein Complexone be stored?
Store at **ambient temperature** in a cool, dry place, away from direct sunlight and incompatible substances.
What purity grades or forms of o-Cresolphthalein Complexone does Molekula supply?
Molekula supplies **analytical reagent (AR) grade** o-Cresolphthalein Complexone, suitable for high-precision applications.
Can Molekula supply o-Cresolphthalein Complexone in bulk quantities?
Yes, we offer bulk quantities of o-Cresolphthalein Complexone to accommodate large-scale industrial or research needs.
What documentation is provided with an order of o-Cresolphthalein Complexone?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **batch-specific documentation** for traceability.
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