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.

.Beta.-D-Glucopyranosiduronic Acid,5-Bromo-4-Chloro-1H-Indol-3-Yl, Barium Salt CAS NO 57121-06-9

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CAS No.:57121-06-9

Grade:Pharmacy Grade

Content:99.90%

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Desmethyl Mianserin CAS NO 57257-81-5

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CAS No.:57257-81-5

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Content:99.90%

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Benzopyrene Related Compound 9 CAS NO 57303-98-7

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CAS No.:57303-98-7

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Content:99.90%

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Benzo(A)Pyrene-7,8-Diol CAS NO 57303-99-8

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CAS No.:57303-99-8

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Pregnane-3,20-Dione, 17-[(Trimethylsilyl)Oxy]-, Bis(o-Methyloxime), (5 Beta)- CAS NO 57305-29-0

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CAS No.:57305-29-0

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Content:99.90%

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11Β,17,21-Tris(Trimethylsiloxy)-5Α-Pregnane-3,20-Dione Bis(o-Methyl Oxime) CAS NO 57325-81-2

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CAS No.:57325-81-2

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Content:99.90%

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[[(20R)-5Β-Pregnane-3Α,11Β,20,21-Tetryl]Tetra(Oxy)]Tetrakis(Trimethylsilane) CAS NO 57326-08-6

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CAS No.:57326-08-6

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11Β,17,21-Tris(Trimethylsiloxy)-5Β-Pregnane-3,20-Dione Bis(o-Methyl Oxime) CAS NO 57363-09-4

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CAS No.:57363-09-4

Grade:Pharmacy Grade

Content:99.90%

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