Reference Standards

Reference Standards

Reference standards are highly purified, well-characterized substances used to verify the identity, purity, potency, and analytical performance of laboratory measurements. They serve as essential benchmarks in chemical analysis, pharmaceutical quality control, environmental monitoring, and food testing. Reference standards ensure the accuracy and reproducibility of analytical methods by providing traceable calibration materials compliant with international metrological guidelines. Their preparation involves rigorous purification, structural confirmation, stability testing, and certification of assigned values. These standards are critical for method development, instrument calibration, system suitability testing, and regulatory compliance. By establishing analytical comparability across laboratories and industries, reference standards support scientific reliability and strengthen global quality assurance frameworks.

Norfluoxetine CAS NO 56161-73-0

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CAS No.:56161-73-0

Grade:Pharmacy Grade

Content:99.90%

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21-Hydroxy-20-Oxo-5Β-Pregnan-3Α-Yl Β-D-Glucopyranosiduronic Acid CAS NO 56162-36-8

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CAS No.:56162-36-8

Grade:Pharmacy Grade

Content:99.90%

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17,21-Dihydroxy-20-Oxo-5Β-Pregnan-3Α-Yl Β-D-Glucopyranosiduronic Acid CAS NO 56162-40-4

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CAS No.:56162-40-4

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Content:99.90%

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6-Deoxy-2-O,3-O,4-O,5-o-Tetrakis(Trimethylsilyl)-D-Galactose o-Methyl Oxime CAS NO 56196-05-5

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CAS No.:56196-05-5

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Content:99.90%

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3Α,17,21-Tris(Trimethylsiloxy)-5Β-Pregnan-20-One o-Methyl Oxime CAS NO 56196-43-1

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CAS No.:56196-43-1

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Content:99.90%

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Valyl-Ochratoxin A CAS NO 56222-78-7

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CAS No.:56222-78-7

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Content:99.90%

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Β-D-Glucopyranosiduronic Acid, (2S)-3,4-Dihydro-5,6-Dihydroxy-4-Oxo-2-Phenyl-2H-1-Benzopyran-7-Yl CAS NO 56226-98-3

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CAS No.:56226-98-3

Grade:Pharmacy Grade

Content:99.90%

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5-Hydroxy-L-Tryptophan Tris(Trimethylsilyl) Deriv. CAS NO 56272-77-6

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CAS No.:56272-77-6

Grade:Pharmacy Grade

Content:99.90%

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