Preservative Standards

Colorant Standards

Preservative standard is a class of standard analytical substance with high purity. Generally, preservative standards have one or more identified characteristics, which is mainly used for quantitative or qualitative analysis of preservative ingredients in food or cosmetics. The commonly used preservative standards include sorbic acid, benzoic acid, methyl para-hydroxybenzoats, ethyl p-hydroxybenzoate, propyl p-hydroxybenzoate, hydroquinone and others.

Application Fields

Preservative standards are commonly used in photo spectrophotometry, thin layer chromatography, high performance liquid chromatography, gas chromatography, capillary electrochromatography, micellar electrokinetic capillary chromatography and other detection methods to identify or analyze the types and contents of preservatives.

Why choose Alfa Chemistry?

Alfa Chemistry is one of the largest providers of preservative standards in the world and the quality assurance is of prime importance to Alfa Chemistry. The solvent from Alfa Chemistry in the world is synonymous with reliability and excellent quality. Because of the exacting nature of our business and the regulatory demands placed upon our industry, Alfa Chemistry continues to be at the forefront in terms of compliance, accreditations and certifications.

CAS Number: 1948-33-0
Molecular Formula: C10H14O2
Molecular Weight: 166.22
CAS Number: 532-32-1
Molecular Weight: 144.10
CAS Number: 99-76-3
Molecular Weight: 152.15
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