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.

(+/-)-Nicotine-D4 CAS NO 350818-69-8

Unit Price:Get Price

CAS No.:350818-69-8

Grade:Pharmacy Grade

Content:99.90%

Packaging:Customizable

17Beta-Dihydroequilin-2,4,16,16-D4 CAS NO 350819-99-7

Unit Price:Get Price

CAS No.:350819-99-7

Grade:Pharmacy Grade

Content:99.90%

Packaging:Customizable

17Alpha-Ethynylestradiol-2,4,16,16-D4 CAS NO 350820-06-3

Unit Price:Get Price

CAS No.:350820-06-3

Grade:Pharmacy Grade

Content:99.90%

Packaging:Customizable

(1R,2S)-(-)-Ephedrine-Gamma,Gamma,Gamma-D3 Hcl CAS NO 350820-07-4

Unit Price:Get Price

CAS No.:350820-07-4

Grade:Pharmacy Grade

Content:99.90%

Packaging:Customizable

Kynurenic-3,5,6,7,8-D5 Acid CAS NO 350820-13-2

Unit Price:Get Price

CAS No.:350820-13-2

Grade:Pharmacy Grade

Content:99.90%

Packaging:Customizable

1,6-Diphenyl-1,3,5-Hexatriene-4'-Acetic Acid CAS NO 351009-32-0

Unit Price:Get Price

CAS No.:351009-32-0

Grade:Pharmacy Grade

Content:99.90%

Packaging:Customizable

2,5-Anhydro-D-Mannitol-1,6-Diphosphate, Dibarium Salt Dihydrate CAS NO 352000-03-4

Unit Price:Get Price

CAS No.:352000-03-4

Grade:Pharmacy Grade

Content:99.90%

Packaging:Customizable

Dl-2-Pyrrolidinone-3,3,4,4,5-D5-5-Carboxylic Acid CAS NO 352431-30-2

Unit Price:Get Price

CAS No.:352431-30-2

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.