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 11176–11200 of 16835 results
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Orbifloxacin Standard | refer to certificate | 100mg | Environmental Monitoring Standard Material
Add to cartOrbifloxacin standard with concentration refer to certificate, volume 100mg (cas: 113617-63-3) ideal for chemical titration and analysis ensuring high precision and reliable results
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Orbifloxacin Standard | refer to certificate | 10mg | Environmental Monitoring Standard Material
Add to cartOrbifloxacin standard with concentration refer to certificate, volume 10mg (cas: 113617-63-3) ideal for chemical titration and analysis ensuring high precision and reliable results
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Organic Carbon Solution In Water | 1000ug/mL | 20mL | Water Quality Analysis Standard Material
Add to cartOrganic carbon solution in water with concentration 1000ug/ml, volume 20ml (cas: 877-24-7) ideal for chemical titration and analysis ensuring high precision and reliable results
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Organic Carbon Solution In Water | 400ug/mL | 100mL | Water Quality Analysis Standard Material
Add to cartOrganic carbon solution in water with concentration 400ug/ml, volume 100ml ideal for chemical titration and analysis ensuring high precision and reliable results
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Organic Interferent Solution | 30g/L | 100mL | Environmental Monitoring Standard Material
Add to cartOrganic interferent solution with concentration 30g/l, volume 100ml (cas: 9048-46-8) ideal for chemical titration and analysis ensuring high precision and reliable results
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Orientin Standard | refer to certificate | 20mg | Environmental Monitoring Standard Material
Add to cartOrientin standard with concentration refer to certificate, volume 20mg (cas: 28608-75-5) ideal for chemical titration and analysis ensuring high precision and reliable results
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Orlistat Solution In Acetonitrile | 100ug/mL | 1.2mL | Environmental Monitoring Standard Material
Add to cartOrlistat solution in acetonitrile with concentration 100ug/ml, volume 1.2ml (cas: 96829-58-2) ideal for chemical titration and analysis ensuring high precision and reliable results
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Ornidazole Solution In Methanol | 100ug/mL | 1.2mL | Environmental Monitoring Standard Material
Add to cartOrnidazole solution in methanol with concentration 100ug/ml, volume 1.2ml (cas: 16773-42-5) ideal for chemical titration and analysis ensuring high precision and reliable results
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Ornidazole Standard | 98.1% | 100mg | Research & Development Standard Material
Add to cartOrnidazole standard with concentration 98.1%, volume 100mg (cas: 16773-42-5) suitable for laboratory analytical applications ensuring high precision and reliable results
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Ornidazole Standard | 99.5% | 100mg | Research & Development Standard Material
Add to cartOrnidazole standard with concentration 99.5%, volume 100mg (cas: 16773-42-5) suitable for laboratory analytical applications ensuring high precision and reliable results
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Orotic Acid Standard | 98.00% | 100mg | Environmental Monitoring Standard Material
Add to cartOrotic acid standard with concentration 98.00%, volume 100mg (cas: 65-86-1) ideal for chemical titration and analysis ensuring high precision and reliable results
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ORP (Oxidation-Reduction Potential) Solution | 220mV(25 celsius) | 100mL | Environmental Monitoring Standard Material
Add to cartOrp (oxidation-reduction potential) solution with concentration 220mv(25 celsius), volume 100ml ideal for chemical titration and analysis ensuring high precision and reliable results
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ORP (Oxidation-Reduction Potential) Solution | 256mV(25 celsius) | 100mL | Environmental Monitoring Standard Material
Add to cartOrp (oxidation-reduction potential) solution with concentration 256mv(25 celsius), volume 100ml ideal for chemical titration and analysis ensuring high precision and reliable results
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ORP (Oxidation-Reduction Potential) Solution | 41mV(25 celsius) | 100mL | Environmental Monitoring Standard Material
Add to cartOrp (oxidation-reduction potential) solution with concentration 41mv(25 celsius), volume 100ml ideal for chemical titration and analysis ensuring high precision and reliable results
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ORP (Oxidation-Reduction Potential) Solution | 430mV(25 celsius) | 100mL | Environmental Monitoring Standard Material
Add to cartOrp (oxidation-reduction potential) solution with concentration 430mv(25 celsius), volume 100ml ideal for chemical titration and analysis ensuring high precision and reliable results
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ORP (Oxidation-Reduction Potential) Solution | 460mV(25 celsius) | 100mL | Environmental Monitoring Standard Material
Add to cartOrp (oxidation-reduction potential) solution with concentration 460mv(25 celsius), volume 100ml ideal for chemical titration and analysis ensuring high precision and reliable results
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ORP (Oxidation-Reduction Potential) Solution | 475mV(25 celsius) | 100mL | Environmental Monitoring Standard Material
Add to cartOrp (oxidation-reduction potential) solution with concentration 475mv(25 celsius), volume 100ml ideal for chemical titration and analysis ensuring high precision and reliable results
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ORP (Oxidation-Reduction Potential) Solution | 49mV(25 celsius) | 100mL | Environmental Monitoring Standard Material
Add to cartOrp (oxidation-reduction potential) solution with concentration 49mv(25 celsius), volume 100ml (cas: 106-34-3) ideal for chemical titration and analysis ensuring high precision and reliable results
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ORP (Oxidation-Reduction Potential) Solution | 86mV(25 celsius) | 100mL | Environmental Monitoring Standard Material
Add to cartOrp (oxidation-reduction potential) solution with concentration 86mv(25 celsius), volume 100ml ideal for chemical titration and analysis ensuring high precision and reliable results
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ORP (Oxidation-Reduction Potential) Solution | 91mV(25 celsius) | 100mL | Environmental Monitoring Standard Material
Add to cartOrp (oxidation-reduction potential) solution with concentration 91mv(25 celsius), volume 100ml ideal for chemical titration and analysis ensuring high precision and reliable results
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Ortho-acetylsalicylic acid-D3 Isotope Standard | refer to certificate | 10mg | Environmental Monitoring Standard Material
Add to cartOrtho-acetylsalicylic acid-d3 isotope standard with concentration refer to certificate, volume 10mg (cas: 921943-73-9) ideal for chemical titration and analysis ensuring high precision and reliable…
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Ortho-acetylsalicylic acid-D3 Isotope Standard | refer to certificate | 1mg | Environmental Monitoring Standard Material
Add to cartOrtho-acetylsalicylic acid-d3 isotope standard with concentration refer to certificate, volume 1mg (cas: 921943-73-9) ideal for chemical titration and analysis ensuring high precision and reliable …
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Ortho-acetylsalicylic acid-D3 Isotope Standard | refer to certificate | 5mg | Environmental Monitoring Standard Material
Add to cartOrtho-acetylsalicylic acid-d3 isotope standard with concentration refer to certificate, volume 5mg (cas: 921943-73-9) ideal for chemical titration and analysis ensuring high precision and reliable …
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Ortho-dichlorobenzene (1,2-dichlorobenzene) Solution In Carbon Disulfide | 1000ug/mL | 2mL | Environmental Monitoring Standard Material
Add to cartOrtho-dichlorobenzene (1,2-dichlorobenzene) solution in carbon disulfide with concentration 1000ug/ml, volume 2ml (cas: 95-50-1) suitable for laboratory analytical applications ensuring high precis…
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Ortho-dichlorobenzene (1,2-dichlorobenzene) Solution In Methanol | 1000ug/mL | 2mL | Environmental Monitoring Standard Material
Add to cartOrtho-dichlorobenzene (1,2-dichlorobenzene) solution in methanol with concentration 1000ug/ml, volume 2ml (cas: 95-50-1) suitable for laboratory analytical applications ensuring high precision and …

