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 11351–11375 of 16835 results
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p-Nitrophenol Indicator Solution | 5g/L | 100mL | Biochemical Assays Standard Material
Add to cartP-nitrophenol indicator solution with concentration 5g/l, volume 100ml (cas: 51-28-5) suitable for laboratory analytical applications ensuring high precision and reliable results
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p-Nitrophenol-Ethanol Buffer | 10g/L | 100mL | Biochemical Assays Standard Material
Add to cartP-nitrophenol-ethanol buffer with concentration 10g/l, volume 100ml (cas: 100-02-7) suitable for laboratory analytical applications ensuring high precision and reliable results
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P-nitrotoluene (4-nitrotoluene) Solution In Methanol | 1000ug/mL | 2mL | Environmental Monitoring Standard Material
Add to cartP-nitrotoluene (4-nitrotoluene) solution in methanol with concentration 1000ug/ml, volume 2ml (cas: 99-99-0) suitable for laboratory analytical applications ensuring high precision and reliable res…
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P-nitrotoluene (4-nitrotoluene) Solution In Methanol | 100ug/mL | 2mL | Environmental Monitoring Standard Material
Add to cartP-nitrotoluene (4-nitrotoluene) solution in methanol with concentration 100ug/ml, volume 2ml (cas: 99-99-0) suitable for laboratory analytical applications ensuring high precision and reliable results
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p-Nitrotoluene (4-Nitrotoluene) Standard | 99.9% | 5g | Environmental Monitoring Standard Material
Add to cartP-nitrotoluene (4-nitrotoluene) standard with concentration 99.9%, volume 5g (cas: 99-99-0) suitable for laboratory analytical applications ensuring high precision and reliable results
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P-phenylenediamine Solution In Acetonitrile | 100ug/mL | 1.2mL | Environmental Monitoring Standard Material
Add to cartP-phenylenediamine solution in acetonitrile with concentration 100ug/ml, volume 1.2ml (cas: 106-50-3) ideal for chemical titration and analysis ensuring high precision and reliable results
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P-phenylenediamine Solution In Methanol | 1000ug/mL | 1.2mL | Environmental Monitoring Standard Material
Add to cartP-phenylenediamine solution in methanol with concentration 1000ug/ml, volume 1.2ml (cas: 106-50-3) ideal for chemical titration and analysis ensuring high precision and reliable results
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p-Phenylenediamine Standard | 99.9% | 100mg | Research & Development Standard Material
Add to cartP-phenylenediamine standard with concentration 99.9%, volume 100mg (cas: 106-50-3) suitable for laboratory analytical applications ensuring high precision and reliable results
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P-tert-butyl Toluene Solution In Carbon Disulfide | 1000ug/mL | 1.2mL | Environmental Monitoring Standard Material
Add to cartP-tert-butyl toluene solution in carbon disulfide with concentration 1000ug/ml, volume 1.2ml (cas: 98-51-1) suitable for laboratory analytical applications ensuring high precision and reliable results
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p-tolualdehyde-DNPH (calculated As Aldehyde And Ketone) Solution In Acetonitrile | 100ug/mL | 1.2mL | Environmental Monitoring Standard Material
Add to cartP-tolualdehyde-dnph (calculated as aldehyde and ketone) solution in acetonitrile with concentration 100ug/ml, volume 1.2ml (cas: 104-87-0) ideal for chemical titration and analysis ensuring high pr…
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p-tolualdehyde-DNPH (calculated As Aldehyde And Ketone) Solution In Acetonitrile | 10ug/mL | 1.2mL | Environmental Monitoring Standard Material
Add to cartP-tolualdehyde-dnph (calculated as aldehyde and ketone) solution in acetonitrile with concentration 10ug/ml, volume 1.2ml (cas: 104-87-0) ideal for chemical titration and analysis ensuring high pre…
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P-toluenesulfonic Acid Solution In Isopropanol | 1000ug/mL | 2mL | Environmental Monitoring Standard Material
Add to cartP-toluenesulfonic acid solution in isopropanol with concentration 1000ug/ml, volume 2ml (cas: 104-15-4) suitable for laboratory analytical applications ensuring high precision and reliable results
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p-Toluenesulfonic Acid Standard | 99.8% | 250mg | Environmental Monitoring Standard Material
Add to cartP-toluenesulfonic acid standard with concentration 99.8%, volume 250mg (cas: 104-15-4) suitable for laboratory analytical applications ensuring high precision and reliable results
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P-toluidine Solution In Methanol | 1000ug/mL | 1.2mL | Environmental Monitoring Standard Material
Add to cartP-toluidine solution in methanol with concentration 1000ug/ml, volume 1.2ml (cas: 106-49-0) ideal for chemical titration and analysis ensuring high precision and reliable results
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p-Toluidine Standard | 99.80% | 100mg | Research & Development Standard Material
Add to cartP-toluidine standard with concentration 99.80%, volume 100mg (cas: 106-49-0) suitable for laboratory analytical applications ensuring high precision and reliable results
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p-Toluidine Standard | 99.80% | 10mg | Research & Development Standard Material
Add to cartP-toluidine standard with concentration 99.80%, volume 10mg (cas: 106-49-0) suitable for laboratory analytical applications ensuring high precision and reliable results
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p-Xylene In Carbon Disulfide (standard Sample) | 77.0ug/mL | 2mL | Environmental Monitoring Standard Material
Add to cartP-xylene in carbon disulfide (standard sample) with concentration 77.0ug/ml, volume 2ml (cas: 106-42-3) suitable for laboratory analytical applications ensuring high precision and reliable results
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p-Xylene In Carbon Disulfide (standard Sample) | 92.2ug/mL | 2mL | Environmental Monitoring Standard Material
Add to cartP-xylene in carbon disulfide (standard sample) with concentration 92.2ug/ml, volume 2ml (cas: 106-42-3) suitable for laboratory analytical applications ensuring high precision and reliable results
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p-Xylene In Methanol (standard Sample) | 240.8ug/mL | 1.2mL | Environmental Monitoring Standard Material
Add to cartP-xylene in methanol (standard sample) with concentration 240.8ug/ml, volume 1.2ml (cas: 106-42-3) suitable for laboratory analytical applications ensuring high precision and reliable results
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p-Xylene In Methanol (standard Sample) | 58.6ug/mL | 2mL | Environmental Monitoring Standard Material
Add to cartP-xylene in methanol (standard sample) with concentration 58.6ug/ml, volume 2ml (cas: 106-42-3) suitable for laboratory analytical applications ensuring high precision and reliable results
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P-xylene Solution In Carbon Disulfide | 1000ug/mL | 2mL | Environmental Monitoring Standard Material
Add to cartP-xylene solution in carbon disulfide with concentration 1000ug/ml, volume 2ml (cas: 106-42-3) suitable for laboratory analytical applications ensuring high precision and reliable results
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P-xylene Solution In Carbon Disulfide | 100ug/mL | 2mL | Environmental Monitoring Standard Material
Add to cartP-xylene solution in carbon disulfide with concentration 100ug/ml, volume 2ml (cas: 106-42-3) suitable for laboratory analytical applications ensuring high precision and reliable results
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P-xylene Solution In Carbon Disulfide | 10mg/mL | 2mL | Environmental Monitoring Standard Material
Add to cartP-xylene solution in carbon disulfide with concentration 10mg/ml, volume 2ml (cas: 106-42-3) suitable for laboratory analytical applications ensuring high precision and reliable results
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P-xylene Solution In Carbon Disulfide | 500mg/mL | 1mL | Environmental Monitoring Standard Material
Add to cartP-xylene solution in carbon disulfide with concentration 500mg/ml, volume 1ml (cas: 106-42-3) suitable for laboratory analytical applications ensuring high precision and reliable results
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p-Xylene Solution In Methanol | 1000ug/mL | 2mL | Environmental Monitoring Standard Material
Add to cartP-xylene solution in methanol with concentration 1000ug/ml, volume 2ml (cas: 106-42-3) suitable for laboratory analytical applications ensuring high precision and reliable results

