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Chromatography Standards

Frequently used for calibration, chromatography standards have a known concentration to test separating equipment for performance faults.
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2,971 – 2,985 of 23,191 results
2,971

Span™ 80, Viscosity, 1000-2000 mPa. (20°C), MilliporeSigma™ Supelco™

Span(R) 80 is a sorbitan ester series of surfactant. It is produced by esterification of one or more sorbitan hydroxyl group with fatty acid. It is hydrophobic in nature.

2,973

Vanillin Pharmaceutical Secondary Standard, MilliporeSigma™ Supelco™

Vanillin is an aromatic compound, and is used for flavoring foods. It is has biogenetic relationship to phenylpropanoid pathway. It is mostly used in foods, beverages, perfumes and pharmaceuticals.

2,974

Erucic acid, ≥99.0% (GC), MilliporeSigma™ Supelco™

Boiling Point 358°C (400 mmHg)
Type Analytical Standard
Percent Purity ≥99.0% (GC)
Linear Formula CH3(CH2)7 CH=CH(CH2)11 COOH
CAS 29232-93-7
MDL Number MFCD00063188
Physical Form Neat
Flash Point 113°C
Grade Analytical Standard
Synonym cis-13-Docosenoic acid; Prifac 2990
Shelf Life Limited shelf life, expiry date on the label
Formula Weight 338.57
Melting Point 28°C to 32°C
2,976

(R)-(+)-α-Lipoic acid, ≥98.0% (HPLC), MilliporeSigma™ Supelco™

α-Lipoic acid is an antioxidant which is generally present in plants, animals and many other microorganisms.

2,979

Vanillin melting point standard Pharmaceutical Secondary Standard, MilliporeSigma™ Supelco™

Certified pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to pharmacopeia primary standards

2,980

Homosalate Pharmaceutical Secondary Standard, MilliporeSigma™ Supelco™

Type Certified Reference Material
Linear Formula C16H22O3
CAS 118-56-9
MDL Number MFCD00019377
Physical Form Neat
Flash Point 169°C to 173°C
Grade Certified Reference Material
Synonym 3,3,5-Trimethylcyclohexyl salicylate; 2-Hydroxybenzoic acid 3,3,5-trimethylcyclohexyl ester; Homomenthyl salicylate; Homosalate
Purity Grade Notes These secondary standards offer multi-traceability to the USP, EP (PhEur) and BP primary standards, where they are available.
Formula Weight 262.34
2,981

Erucamide, ≥85% (GC), MilliporeSigma™ Supelco™

Erucamide is a migratory additive that is commonly placed in polyolefin films to reduce their coefficient of friction (COF), a good attribute for high speed packaging operations.

2,983

Metformin hydrochloride Pharmaceutical Secondary Standard, MilliporeSigma™ Supelco™

Metformin is a biguanide hypoglycaemic agent and an oral antidiabetic medication widely used in the treatment of type 2 diabetes. It is effective in glycemic control and decreases the intestinal absorption of glucose, without the problem of serious lactic acidosis.

2,984

PESTANAL™ Naptalam, MilliporeSigma™ Supelco™

Naptalam is a purple crystalline solid, which can be used as an anti-geotropic agent and as an auxin (IAA) antagonist in plants.

2,985

Polystyrene, Analytical Standard, For GPC, 800, MilliporeSigma™ Supelco™

Polystyrene (for GPC, 800), a synthetic thermoplastic, is useful in a broad range of applications due to its rigidity, low specific weight, high chemical resistance, mechanical flexibility, biocompatibility and good processability.