CALMAGITE
- CAS No.
- 3147-14-6
- Chemical Name:
- CALMAGITE
- Synonyms
- Caimagite;CALMAGITE;Nsc 299391;CALMAGITE AR;Calmagite, GR;Calmagite solution;CALMAGITE FREE ACID;CALMAGIT Z. ANALYSE;TIMTEC-BB SBB008909;CALMAGITE INDICATOR
- CBNumber:
- CB3771082
- Molecular Formula:
- C17H14N2O5S
- Molecular Weight:
- 358.37
- MDL Number:
- MFCD00011656
- MOL File:
- 3147-14-6.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | 330 °C (lit.) |
|---|---|
| Density | 0.989 |
| storage temp. | Store at RT. |
| solubility | Solubility Soluble in water, ethanol |
| form | Powder |
| pka | 8.1(at 25℃) |
| color | Purple |
| PH Range | Red (7.1) to blue (9.1) |
| Odor | Phenolic odor |
| Water Solubility | Soluble in water. |
| λmax | 610nm |
| Merck | 14,1718 |
| BRN | 708596 |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Major Application | Nanoparticles, cleaning microelectronic substrates, sensors, photographic materials, recording materials, water hardness measurement, indicator for calcium and magnesium, determination of vanadium, medical component, measuring magnesium in biological fluids, diagnosis of diseases caused by elemental imbalance, treatment of thrombocytopenia, Kurine analysis test strip |
| InChI | 1S/C17H14N2O5S/c1-10-6-7-14(20)13(8-10)18-19-17-12-5-3-2-4-11(12)16(9-15(17)21)25(22,23)24/h2-9,20-21H,1H3,(H,22,23,24) |
| InChIKey | VBRNLOQCBCPPHL-VHEBQXMUSA-N |
| SMILES | Cc1ccc(O)c(c1)N=Nc2c(O)cc(c3ccccc23)S(O)(=O)=O |
| FDA UNII | 0A3KVV9HZC |
| EPA Substance Registry System | 1-Naphthalenesulfonic acid, 3-hydroxy-4-[(2-hydroxy-5-methylphenyl)azo]- (3147-14-6) |
| UNSPSC Code | 12352204 |
| NACRES | NA.83 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P264-P271-P280-P302+P352-P305+P351+P338 | |||||||||
| target organs | Respiratory system | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 26-36 | |||||||||
| WGK Germany | 3 | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 29270000 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Eye Irrit. 2 Skin Irrit. 2 STOT SE 3 |
|||||||||
| NFPA 704 |
|
CALMAGITE price More Price(52)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | C204 | Calmagite indicator grade | 3147-14-6 | 10g | $91 | 2026-04-30 | Buy |
| Sigma-Aldrich | C204 | Calmagite indicator grade | 3147-14-6 | 25g | $194 | 2026-04-30 | Buy |
| TCI Chemical | C0008 | Calmagite [Metal indicator for Ca, Mg etc.] | 3147-14-6 | 1g | $73 | 2026-04-30 | Buy |
| TCI Chemical | C0008 | Calmagite [Metal indicator for Ca, Mg etc.] | 3147-14-6 | 5g | $263 | 2026-04-30 | Buy |
| Usbiological | 236786 | Calmagite ACS | 3147-14-6 | 5g | $253 | 2026-06-03 | Buy |
CALMAGITE Chemical Properties, Uses, Production
Chemical Properties
dark brown crystalline powder
Uses
As indicator in titration of Ca or Mg with EDTA.
Uses
Calmagite is widely used in analytical chemistry as an indicator in the titration of calcium or magnesium with ethylenediaminetetraacetic acid (EDTA). It is also useful in the determination of magnesium in biological materials.
Uses
Used for the determination of magnesium in biological materials.
Purification Methods
A crude dye is extracted with anhydrous diethyl ether and forms red crystals from Me2CO. It gives a red colour in H2O at pH 7—9 and a blue colour at pH 9—11 which turns red on addition of Ca2+ or Mg2+ ions. [Lindstrom & Diehl Anal Chem 32 1123 1960]. Complexes with Ca, Mg and Th.
CALMAGITE Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| NANTONG XINHE BIOTECH CO.,LTD | 13813727166,15370460228; 13813727166 | sale_xinhe@outlook.com | China | 374 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Shandong Xiya Chemical Co., Ltd | 13355009207 13355009207 | 3007715519@qq.com | China | 18722 | 57 |
| Sichuan Kulinan Technology Co., Ltd | 400-1166-196 18981987031 | cdhxsj@163.com | China | 11674 | 57 |
| Sinopharm Chemical Reagent Co,Ltd. | 86-21-63210123 | sj_scrc@sinopharm.com | China | 9791 | 79 |
| Hunan Hui Bai Shi Biotechnology Co., Ltd. | 0731-85526065 13308475853 | ivy@hnhbsj.com | China | 7236 | 62 |
View Latest Price from CALMAGITE manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
![]() |
2026-07-21 | Calmagite
3147-14-6
|
$29.00 | 98.88% | 10g | TargetMol Chemicals Inc. | ||
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2024-07-07 | CALMAGITE
3147-14-6
|
$1.00 | 1Kg | 98% | 20T | Shaanxi Dideu Medichem Co. Ltd | |
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2023-07-10 | CALMAGITE
3147-14-6
|
1g | Indicator level | 5000kg | Jiangsu Boquan Biotechnology Co., Ltd. |








