We supply a full range of high-purity and certified standard substances for scientific research, industrial quality control and routine laboratory analysis. Our product portfolio includes elemental standards, buffer solutions, titration solutions, organic reference materials, VOCs standards, indicators and testing reagents. All standard substances are strictly calibrated, with traceable values, stable batch consistency and complete certification documents. Widely applied in pharmaceutical, food, environmental, water quality, soil, agricultural and biochemical testing fields. We provide reliable reference materials to ensure accurate, repeatable and compliant experimental results for global laboratories and manufacturers.
Standard substance
Showing 16051–16075 of 16835 results
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Urea Standard | 99.3% | 2g | Research & Development Standard Material
Add to cartUrea standard with concentration 99.3%, volume 2g (cas: 57-13-6) suitable for laboratory analytical applications ensuring high precision and reliable results
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Urea Standard | 99.90% | 100mg | Research & Development Standard Material
Add to cartUrea standard with concentration 99.90%, volume 100mg (cas: 57-13-6) suitable for laboratory analytical applications ensuring high precision and reliable results
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Urea-13C Isotope Standard | refer to certificate | 100mg | Environmental Monitoring Standard Material
Add to cartUrea-13c isotope standard with concentration refer to certificate, volume 100mg (cas: 58069-82-2) ideal for chemical titration and analysis ensuring high precision and reliable results
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Urea-13C Standard | 99.0%(Isotopic Value:99.0%) | 1g | Research & Development Standard Material
Add to cartUrea-13c standard with concentration 99.0%(isotopic value:99.0%), volume 1g (cas: 58069-82-2) suitable for laboratory analytical applications ensuring high precision and reliable results
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Urea-13C,15N2 Isotopic Standard | refer to certificate | 1mg | Environmental Monitoring Standard Material
Add to cartUrea-13c,15n2 isotopic standard with concentration refer to certificate, volume 1mg (cas: 78405-35-3) ideal for chemical titration and analysis ensuring high precision and reliable results
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Urea-13C,15N2 Isotopic Standard | refer to certificate | 5mg | Environmental Monitoring Standard Material
Add to cartUrea-13c,15n2 isotopic standard with concentration refer to certificate, volume 5mg (cas: 78405-35-3) ideal for chemical titration and analysis ensuring high precision and reliable results
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Urease (Urease) Standard | ≥45 units/mg dry weight | 250mg | Environmental Monitoring Standard Material
Add to cartUrease (urease) standard with concentration ≥45 units/mg dry weight, volume 250mg (cas: 9002-13-5) ideal for chemical titration and analysis ensuring high precision and reliable results
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Uric Acid Standard | 98.2% | 100mg | Environmental Monitoring Standard Material
Add to cartUric acid standard with concentration 98.2%, volume 100mg (cas: 59-00-7) ideal for chemical titration and analysis ensuring high precision and reliable results
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Uric Acid Standard | 99.0% | 1g | Environmental Monitoring Standard Material
Add to cartUric acid standard with concentration 99.0%, volume 1g (cas: 69-93-2) ideal for chemical titration and analysis ensuring high precision and reliable results
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Uric Acid Standard | 99.3% | 500mg | Environmental Monitoring Standard Material
Add to cartUric acid standard with concentration 99.3%, volume 500mg (cas: 69-93-2) ideal for chemical titration and analysis ensuring high precision and reliable results
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Uric Acid Standard | 99.30% | 100mg | Environmental Monitoring Standard Material
Add to cartUric acid standard with concentration 99.30%, volume 100mg (cas: 69-93-2) ideal for chemical titration and analysis ensuring high precision and reliable results
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Uridine 5 ‘-monophosphate Disodium Salt Standard | 99.90% | 100mg | Environmental Monitoring Standard Material
Add to cartUridine 5 ‘-monophosphate disodium salt standard with concentration 99.90%, volume 100mg (cas: 3387-36-8) ideal for chemical titration and analysis ensuring high precision and reliable results
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Uridine 5-Monophosphate Standard | 99.03% | 100mg | Environmental Monitoring Standard Material
Add to cartUridine 5-monophosphate standard with concentration 99.03%, volume 100mg (cas: 58-97-9) ideal for chemical titration and analysis ensuring high precision and reliable results
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Uridine 5-Monophosphate Standard | 99.90% | 10mg | Environmental Monitoring Standard Material
Add to cartUridine 5-monophosphate standard with concentration 99.90%, volume 10mg (cas: 58-97-9) ideal for chemical titration and analysis ensuring high precision and reliable results
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Uridine Standard | 99.70% | 100mg | Research & Development Standard Material
Add to cartUridine standard with concentration 99.70%, volume 100mg (cas: 58-96-8) suitable for laboratory analytical applications ensuring high precision and reliable results
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Urotropine Solution In Methanol | 1000ug/mL | 1.2mL | Environmental Monitoring Standard Material
Add to cartUrotropine solution in methanol with concentration 1000ug/ml, volume 1.2ml (cas: 100-97-0) ideal for chemical titration and analysis ensuring high precision and reliable results
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Ursolic Acid Reference Substance | 98% | 20mg | Environmental Monitoring Standard Material
Add to cartUrsolic acid reference substance with concentration 98%, volume 20mg (cas: 77-52-1) ideal for chemical titration and analysis ensuring high precision and reliable results
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USP Colorimetric Fluid (A-T) | | 10mL*20pcs/set | Environmental Monitoring Standard Material
Add to cartUsp colorimetric fluid (a-t) with concentration specification: 10ml*20pcs/set, volume 10ml*20pcs/set ideal for chemical titration and analysis ensuring high precision and reliable results
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USP Colorimetric Fluid (A) | | 10mL*10pcs/set | Environmental Monitoring Standard Material
Add to cartUsp colorimetric fluid (a) with concentration specification: 10ml*10pcs/set, volume 10ml*10pcs/set ideal for chemical titration and analysis ensuring high precision and reliable results
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USP Colorimetric Fluid (B) | | 10mL*10pcs/set | Environmental Monitoring Standard Material
Add to cartUsp colorimetric fluid (b) with concentration specification: 10ml*10pcs/set, volume 10ml*10pcs/set ideal for chemical titration and analysis ensuring high precision and reliable results
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USP Colorimetric Fluid (D) | | 10mL*10pcs/set | Environmental Monitoring Standard Material
Add to cartUsp colorimetric fluid (d) with concentration specification: 10ml*10pcs/set, volume 10ml*10pcs/set ideal for chemical titration and analysis ensuring high precision and reliable results
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USP Colorimetric Fluid (F) | | 10mL*10pcs/set | Environmental Monitoring Standard Material
Add to cartUsp colorimetric fluid (f) with concentration specification: 10ml*10pcs/set, volume 10ml*10pcs/set ideal for chemical titration and analysis ensuring high precision and reliable results
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USP Colorimetric Fluid (H) | | 10mL*10pcs/set | Environmental Monitoring Standard Material
Add to cartUsp colorimetric fluid (h) with concentration specification: 10ml*10pcs/set, volume 10ml*10pcs/set ideal for chemical titration and analysis ensuring high precision and reliable results
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USP Colorimetric Fluid (J) | | 10mL*10pcs/set | Environmental Monitoring Standard Material
Add to cartUsp colorimetric fluid (j) with concentration specification: 10ml*10pcs/set, volume 10ml*10pcs/set ideal for chemical titration and analysis ensuring high precision and reliable results
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USP Colorimetric Fluid (O) | | 10mL*10pcs/set | Environmental Monitoring Standard Material
Add to cartUsp colorimetric fluid (o) with concentration specification: 10ml*10pcs/set, volume 10ml*10pcs/set ideal for chemical titration and analysis ensuring high precision and reliable results
