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.

3-Ketoanguidin CAS NO 2269-44-5

Unit Price:Get Price

CAS No.:2269-44-5

Grade:Pharmacy Grade

Content:99.90%

Packaging:Customizable

(-)-2-Amino-6-[(1S,2R)-1,2,3-Trihydroxypropyl]Pteridine-4(1H)-One CAS NO 2277-43-2

Unit Price:Get Price

CAS No.:2277-43-2

Grade:Pharmacy Grade

Content:99.90%

Packaging:Customizable

Urs-12-En-11-One, 3-(Acetyloxy)-, (3Β)- CAS NO 2348-66-5

Unit Price:Get Price

CAS No.:2348-66-5

Grade:Pharmacy Grade

Content:99.90%

Packaging:Customizable

Methyl 17-Acetoxyoctadecanoate CAS NO 2380-15-6

Unit Price:Get Price

CAS No.:2380-15-6

Grade:Pharmacy Grade

Content:99.90%

Packaging:Customizable

10-Methylbenz[A]Anthracene CAS NO 2381-15-9

Unit Price:Get Price

CAS No.:2381-15-9

Grade:Pharmacy Grade

Content:99.90%

Packaging:Customizable

7-Hydroxyestrone CAS NO 2487-49-2

Unit Price:Get Price

CAS No.:2487-49-2

Grade:Pharmacy Grade

Content:99.90%

Packaging:Customizable

7,12-Dimethylbenz(A)Anthracene-Dihydrodiol CAS NO 2518-00-5

Unit Price:Get Price

CAS No.:2518-00-5

Grade:Pharmacy Grade

Content:99.90%

Packaging:Customizable

7,12-Dihydroxymethylbenz(A)Anthracene CAS NO 2564-65-0

Unit Price:Get Price

CAS No.:2564-65-0

Grade:Pharmacy Grade

Content:99.90%

Packaging:Customizable

Go to Page

Why choose US

Trusted Manufacturer

With our own production facilities, we ensure consistent quality, reliable supply, and full traceability.

Rigorous Quality Assurance

Each batch undergoes strict QC, accompanied by COA, MSDS, and full compliance with international standards.

Advanced R&D Expertise

Our in-house lab drives process innovation, new product development, and tailored synthesis solutions.