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.

Cholesterol-3-18O CAS NO 59613-51-3

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CAS No.:59613-51-3

Grade:Pharmacy Grade

Content:99.90%

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(S)-(-)-Malic-2,3,3-D3 Acid CAS NO 59652-74-3

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CAS No.:59652-74-3

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Content:99.90%

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n-(N'-Methyl-N'-Nitroso(Aminomethyl))*Be Nzamide CAS NO 59665-02-0

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CAS No.:59665-02-0

Grade:Pharmacy Grade

Content:99.90%

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Cephalexin Diketopiperazine CAS NO 59865-11-1

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CAS No.:59865-11-1

Grade:Pharmacy Grade

Content:99.90%

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H-[15N]Leu-Oh CAS NO 59935-31-8

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CAS No.:59935-31-8

Grade:Pharmacy Grade

Content:99.90%

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Rapamycin Impurity 6 CAS NO 500733-49-3

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CAS No.:500733-49-3

Grade:Pharmacy Grade

Content:99.90%

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Gemfibrozil Related Compound A ,(E,Z)-2,2-Dimethyl-5-[2,5-Dimethyl-4-(Propene-1-Yl)Phenoxy]Valeric Acid CAS NO 500904-61-0

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CAS No.:500904-61-0

Grade:Pharmacy Grade

Content:99.90%

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Nsc 377363 CAS NO 502139-01-7

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CAS No.:502139-01-7

Grade:Pharmacy Grade

Content:99.90%

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