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.

Metformin Impurity 16 CAS NO 35185-82-1

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CAS No.:35185-82-1

Grade:Pharmacy Grade

Content:99.90%

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7,11-Dimethylbenz[A]Anthracene CAS NO 35187-28-1

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CAS No.:35187-28-1

Grade:Pharmacy Grade

Content:99.90%

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(13R,14R)-14,19-Dihydro-12,13-Dihydroxy-20-Norcrotalanan-11,15-Dione 4-Oxide CAS NO 35337-98-5

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CAS No.:35337-98-5

Grade:Pharmacy Grade

Content:99.90%

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14,15,17,18-Tetrakis[(Trimethylsilyl)Oxy]Octadecanoic Acid Methyl Ester CAS NO 35437-08-2

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CAS No.:35437-08-2

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Content:99.90%

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Fenoprofen Acyl-Β-D-Glucuronide CAS NO 35440-36-9

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CAS No.:35440-36-9

Grade:Pharmacy Grade

Content:99.90%

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Isohyperoside CAS NO 35589-21-0

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CAS No.:35589-21-0

Grade:Pharmacy Grade

Content:99.90%

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Beta-D-Glucopyranuronic Acid, 1-((Acetyl(1,1'-Biphenyl)-4-Ylamino)Oxy)-1-Deoxy- CAS NO 35651-97-9

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CAS No.:35651-97-9

Grade:Pharmacy Grade

Content:99.90%

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Dl-4-Hydroxyphenylalanine-15N CAS NO 35693-13-1

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CAS No.:35693-13-1

Grade:Pharmacy Grade

Content:99.90%

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