Molekula
3-Metil-1-(4-sulfofenil)-2-pirazolin-5-one
3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one
Certificado ISO 9001:2015 e ISO 14001:2015 · Suministro a laboratorios e industria desde el año 2000 · Certificado de Análisis (CoA) con cada lote
3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one, also known as **Methyl Orange**, is a synthetic pH indicator dye widely used in acid-base titrations, analytical chemistry, and textile dyeing. Its distinct color change from red to yellow across pH 3.1–4.4 makes it ideal for visualizing pH shifts in laboratories. This chemical has a CAS number of 89-36-1, a molecular formula of C10H10N2O4S, and a molecular weight of 254.26 g/mol. It is stored at ambient conditions but requires careful handling due to its **Danger** classification. Molekula supplies 3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Resumen
3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one, also known as **Methyl Orange**, is a synthetic pH indicator dye widely used in acid-base titrations, analytical chemistry, and textile dyeing. Its distinct color change from red to yellow across pH 3.1–4.4 makes it ideal for visualizing pH shifts in laboratories. This chemical has a CAS number of 89-36-1, a molecular formula of C10H10N2O4S, and a molecular weight of 254.26 g/mol. It is stored at ambient conditions but requires careful handling due to its **Danger** classification. Molekula supplies 3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Precios y tamaños de envase
Especificaciones
| Property | Value |
|---|---|
| Appearance | Pale yellow powder |
| Solubility | Clear solution (in Na2CO3) |
| Assay (HPLC) | ≥99.0% |
| Insoluble Matter | ≤0.2% |
| Iron (Fe) | ≤0.002% |
| Lead (Pb) | ≤0.001% |
| Mercury (Hg) | ≤0.0001% |
| Arsenic (As) | ≤0.0001% |
Almacenamiento y manejo
| Property | Value |
|---|---|
| Temperatura de Almacenamiento | Ambient |
| Clase de transporte | 8 |
| Grupo de empaquetado | II |
| Acidez | Acid |
Identificación
| Property | Value |
|---|---|
| SKU | 32793754 |
| Número CAS | 89-36-1 |
| Fórmula molecular | C10H10N2O4S |
| Peso molecular | 254.26 |
| SMILES | CC1=NN(C(=O)C1)C2=CC=C(C=C2)S(=O)(=O)O |
| Número EC / UN | 3261 |
| Código REACH | Y110 |
| Incluido en el listado TSCA | Sí |
| Código HTS | 2933199000 |
| Código arancelario | 2933199090 |
Seguridad y GHS
-
Corrosive
GHS05
-
Health Hazard
GHS07
Declaraciones de peligro
- H314 (sub cat. 1B) Provoca quemaduras graves en la piel y lesiones oculares graves.
- H317 Puede provocar una reacción alérgica en la piel.
- H412 Nocivo para los organismos acuáticos, con efectos nocivos duraderos.
Declaraciones de precaución
- P260 No respirar el polvo/el humo/el gas/la niebla/los vapores/el aerosol.
- P273 Evitar su liberación al medio ambiente.
- P280 Llevar guantes/prendas/gafas/máscara de protección.
- P303+361 En caso de contacto con la piel (o el pelo): Quitar inmediatamente toda la ropa contaminada. Enjuagar con agua o ducharse.
- P304+340 EN CASO DE INHALACIÓN: Transportar a la persona al aire libre y mantenerla en una posición que le facilite la respiración.
- P305+351+338 EN CASO DE CONTACTO CON LOS OJOS: Aclarar cuidadosamente con agua durante varios minutos. Quitar las lentes de contacto, si lleva y resulta fácil. Seguir aclarando.
Documentos
Fichas de Datos de Seguridad (FDS)
Disponible en English, English (US), French, German, Italian, Portuguese, Spanish.
Certificado de Análisis (CoA) por lote
Introduzca un número de lote o partida para recuperar el informe de análisis (CoA) correspondiente a esa partida específica. Podemos generar uno a partir de los datos de especificación si no hay ningún PDF disponible.
Sinónimos
No se han registrado nombres alternativos para este producto.
Preguntas frecuentes
What is 3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one (CAS 89-36-1) commonly used for?
This compound is primarily used as a **coupling agent in azo dye synthesis** for textiles, leather, and paper, as well as in analytical chemistry for pH indicators and spectrophotometric assays.
What is the molecular formula and molecular weight of this product?
The molecular formula is **C₁₀H₁₀N₂O₄S**, and the molecular weight is **254.26 g/mol**.
How should this chemical be stored?
Store at **ambient temperature** in a tightly sealed container, away from moisture and direct sunlight. Follow standard chemical storage practices for hazardous materials.
What purity grades are available for this product?
We supply this product in **technical grade (95%+ purity)** and **analytical/pharmaceutical grade (98%+ purity)**. Let us know your specific application for recommendations.
Can Molekula supply this product in bulk quantities?
Yes, we offer **bulk packaging options** (e.g., 5 kg, 25 kg, and 100 kg drums) for industrial and commercial customers. Minimum order quantities may apply—contact us for details.
What documentation is provided with an order of this chemical?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS/SDS)**, and **batch-specific documentation** for traceability. Custom packaging certificates are available upon request.
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