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.

Isophorone-Dnph CAS NO 93445-21-7

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CAS No.:93445-21-7

Grade:Pharmacy Grade

Content:99.90%

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4-Methyl-2-Oxopentanoic-1-13C Acid Sod& CAS NO 93523-70-7

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CAS No.:93523-70-7

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Content:99.90%

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Ursodeoxycholic Acid-D5 CAS NO 93701-18-9

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CAS No.:93701-18-9

Grade:Pharmacy Grade

Content:99.90%

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11-Hydroxyalbocycline CAS NO 93752-58-0

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CAS No.:93752-58-0

Grade:Pharmacy Grade

Content:99.90%

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±-Artemether-D3 CAS NO 93861-34-8

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CAS No.:93861-34-8

Grade:Pharmacy Grade

Content:99.90%

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Jbvvdxjxidydmf-Ugfkoghwsa-N CAS NO 93861-51-9

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CAS No.:93861-51-9

Grade:Pharmacy Grade

Content:99.90%

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Fluvastatin n-Ethyl Sodium Salt (Fluvastatin Impurity) CAS NO 93936-64-2

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CAS No.:93936-64-2

Grade:Pharmacy Grade

Content:99.90%

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4-Nitrophenol-2,3,5,6-D4 CAS NO 93951-79-2

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CAS No.:93951-79-2

Grade:Pharmacy Grade

Content:99.90%

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