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Merck

PHR1565

Supelco

D4 Cyclomethicone

Pharmaceutical Secondary Standard; Certified Reference Material

Sinónimos:

Octamethylcyclotetrasiloxane

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About This Item

Fórmula lineal:
[-Si(CH3)2O-]4
Número de CAS:
Peso molecular:
296.62
Beilstein:
1787074
Número CE:
Número MDL:
Código UNSPSC:
41116107
ID de la sustancia en PubChem:
NACRES:
NA.24

grado

certified reference material
pharmaceutical secondary standard

Nivel de calidad

Agency

traceable to USP 1154707

densidad de vapor

1 (vs air)

familia API

cyclomethicone

formulario

liquid

CofA

current certificate can be downloaded

envase

pkg of 500 mg

técnicas

HPLC: suitable
gas chromatography (GC): suitable

índice de refracción

n20/D 1.396 (lit.)

bp

175-176 °C (lit.)

mp

17-18 °C (lit.)

densidad

0.956 g/mL at 25 °C (lit.)

aplicaciones

pharmaceutical (small molecule)

formato

neat

temp. de almacenamiento

2-30°C

cadena SMILES

C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1

InChI

1S/C8H24O4Si4/c1-13(2)9-14(3,4)11-16(7,8)12-15(5,6)10-13/h1-8H3

Clave InChI

HMMGMWAXVFQUOA-UHFFFAOYSA-N

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Descripción general

D4 Cyclomethicone is a cyclic siloxane, that has a silicon-oxygen bond in a cyclic arrangement and methyl groups attached with the silicon atom. It is used in the production of some silicon-based polymers that are widely used in various personal care products.
Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.

Aplicación

D4 Cyclomethicone may be used as a pharmaceutical reference standard for the determination of the analyte in personal care formulations by gas chromatography.
These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.

Nota de análisis

These secondary standards offer multi-traceability to the USP, EP and BP primary standards, where they are available.

Otras notas

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.

Nota al pie de página

To see an example of a Certificate of Analysis for this material enter LRAC2961 in the slot below. This is an example certificate only and may not be the lot that you receive.

Productos recomendados

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

Palabra de señalización

Warning

Frases de peligro

Clasificaciones de peligro

Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Liq. 3 - Repr. 2

Código de clase de almacenamiento

3 - Flammable liquids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

123.8 °F - closed cup

Punto de inflamabilidad (°C)

51 °C - closed cup


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Certificados de análisis (COA)

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Visite la Librería de documentos

Sensitive method for quantification of octamethylcyclotetrasiloxane (D4) and decamethylcyclopentasiloxane (D5) in end-exhaled air by thermal desorption gas chromatography mass spectrometry
Biesterbos JWH, et al.
Analytical Chemistry, 86(12), 5794-5799 (2014)
Determination of cyclic volatile methylsiloxanes in personal care products by gas chromatography
Brothers Jr HM, et al.
International Journal of Cosmetic Science, 39(6), 580-588 (2017)
Safety assessment of cyclomethicone, cyclotetrasiloxane, cyclopentasiloxane, cyclohexasiloxane, and cycloheptasiloxane
Johnson Jr, et al.
International Journal of Toxicology, 30, 149S-227S (2011)

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