Molekula
Rojo de cresol
Cresol Red
Certificado ISO 9001:2015 e ISO 14001:2015 · Suministro a laboratorios e industria desde el año 2000 · Certificado de Análisis (CoA) con cada lote
Cresol Red is a synthetic pH indicator dye used in analytical chemistry for titrations, particularly in determining the pH range of 7.2–8.8, and in biological buffers. It appears yellow in acidic solutions and red in alkaline conditions, making it ideal for precise pH monitoring. Catalogue details include CAS 1733-12-6, molecular formula C21H18O5S, and a molecular weight of 382.43. Store at ambient conditions, with a signal word of Warning. Molekula supplies Cresol Red from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Resumen
Cresol Red is a synthetic pH indicator dye used in analytical chemistry for titrations, particularly in determining the pH range of 7.2–8.8, and in biological buffers. It appears yellow in acidic solutions and red in alkaline conditions, making it ideal for precise pH monitoring. Catalogue details include CAS 1733-12-6, molecular formula C21H18O5S, and a molecular weight of 382.43. Store at ambient conditions, with a signal word of Warning. Molekula supplies Cresol Red from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Precios y tamaños de envase
Especificaciones
| Property | Value |
|---|---|
| Appearance | Dark Red Powder |
| Solubility at 0.1% (95% Ethanol) | Clear Yellow Solution |
| Loss on drying (110 °C) | (Max.) 3.00% |
| pH Transition - Colour Change | pH6.5 (Yellow) - pH8.8 (Purple) |
| Wavelength of Maximum Absorption (pH6.5) λmax1 | 432.0-436.0 nm |
| Specific Absorption (E1%/1cm) at λ max1 | (Min.) 490 |
| Wavelength of Maximum Absorption (pH 8.8) λ max2 | 571.0-574.0 nm |
| Specific Absorption (E1%/1cm) at λ max2 | (Min.) 1000 |
Almacenamiento y manejo
| Property | Value |
|---|---|
| Temperatura de Almacenamiento | Ambient |
| Acidez | Neutral |
Identificación
| Property | Value |
|---|---|
| SKU | 32608392 |
| Número CAS | 1733-12-6 |
| Fórmula molecular | C21H18O5S |
| Peso molecular | 382.43 |
| SMILES | CC1=C(C=CC(=C1)C2(C3=CC=CC=C3S(=O)(=O)O2)C4=CC(=C(C=C4)O)C)O |
| Código REACH | Y113 |
| Incluido en el listado TSCA | Sí |
| Código HTS | 2934.99.4400 |
| Código arancelario | 2934999090 |
Seguridad y GHS
-
Health Hazard
GHS07
Declaraciones de peligro
- H315 Provoca irritación cutánea.
- H319 Provoca irritación ocular grave.
- H335 Puede irritar las vías respiratorias.
Declaraciones de precaución
- P261 Evitar respirar el polvo/el humo/el gas/la niebla/los vapores/el aerosol.
- P264 Lavarse concienzudamente tras la manipulación.
- P280 Llevar guantes/prendas/gafas/máscara de protección.
- P302+P352 EN CASO DE CONTACTO CON LA PIEL: Lavar con abundante agua/...
- P304+P340 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, 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 Cresol Red commonly used for?
Cresol Red is primarily used as a pH indicator in laboratories, with a transition range of pH 7.2–8.8 (yellow to purple-red). It is also employed in some biochemical assays and as a dye in certain analytical applications.
What is the chemical formula and molecular weight of Cresol Red?
The chemical formula is **C₂₁H₁₈O₅S**, and the molecular weight is **382.43 g/mol**.
How should Cresol Red be stored?
Store Cresol Red at **ambient temperature** in a tightly sealed container, away from direct sunlight and moisture.
What grade or purity is available for Cresol Red from Molekula?
Molekula supplies Cresol Red in **analytical reagent (AR) grade** for laboratory applications, ensuring high purity and consistency.
Can Molekula supply Cresol Red in bulk quantities?
Yes, Molekula can provide Cresol Red in bulk, with quantities tailored to meet your specific research or industrial requirements—please contact us for pricing and availability.
What documentation comes with an order of Cresol Red?
Each order includes a **Certificate of Analysis (CoA)** detailing purity, batch-specific data, and safety information, along with a **Material Safety Data Sheet (MSDS)** for handling and storage guidelines.
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