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Primary Reference Standard

When precision matters most, start with the highest benchmark—Primary Reference Standards from Lancetech Ltd are essential for achieving traceable and reproducible results in analytical testing. These ultra-pure substances serve as the definitive reference point for calibrating instruments, verifying methods, and producing secondary standards.


Ideal for pharmaceutical, environmental, and chemical laboratories, our primary standards ensure compliance with global regulatory requirements and support accurate quantification across a wide range of applications. Each standard is backed by detailed documentation and traceability to certified bodies, ensuring your data integrity from the first measurement onward.


Explore our range of primary reference materials and set a solid foundation for your lab’s analytical success.

Rucaparib 100 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: R042-100MG
Rucaparib 100 mg CAS number 283173-50-2 and purity ≥98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£305.87 £339.85
Rucaparib Camsylate 10 mg
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Manufacturer: TOKU-E Item Number: R044-10MG
Rucaparib Camsylate 10 mg CAS number 1859053-21-6 and purity ≥98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£144.02 £160.02
Rucaparib Camsylate 50 mg
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Manufacturer: TOKU-E Item Number: R044-50MG
Rucaparib Camsylate 50 mg CAS number 1859053-21-6 and purity ≥98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£316.94 £352.16
Rucaparib Phosphate 10 mg
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Manufacturer: TOKU-E Item Number: R043-10MG
Rucaparib Phosphate 10 mg CAS number 459868-92-9 and purity ≥98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£87.67 £97.41
Rucaparib Phosphate 100 mg
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Manufacturer: TOKU-E Item Number: R043-100MG
Rucaparib Phosphate 100 mg CAS number 459868-92-9 and purity ≥98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£305.87 £339.85
Rugulosin (+) form 1 mg
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Manufacturer: TOKU-E Item Number: R037-1MG
Rugulosin (+) form 1 mg CAS number 23537-16-8 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£243.73 £270.81
Rugulosin (+) form 5 mg
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Manufacturer: TOKU-E Item Number: R037-5MG
Rugulosin (+) form 5 mg CAS number 23537-16-8 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£849.68 £944.09
Rugulosin (-) form 1 mg
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Manufacturer: TOKU-E Item Number: R036-1MG
Rugulosin (-) form 1 mg CAS number 21884-45-7 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£230.72 £256.36
Rugulosin (-) form 5 mg
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Manufacturer: TOKU-E Item Number: R036-5MG
Rugulosin (-) form 5 mg CAS number 21884-45-7 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£805.85 £895.39
Rugulotrosin A 1 mg
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Manufacturer: TOKU-E Item Number: R038-1MG
Rugulotrosin A 1 mg CAS number 685135-81-3 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£230.72 £256.36
Rugulotrosin A 5 mg
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Manufacturer: TOKU-E Item Number: R038-5MG
Rugulotrosin A 5 mg CAS number 685135-81-3 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£805.85 £895.39
Saccharocarcin A 0.5 mg
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Manufacturer: TOKU-E Item Number: S073-0.5MG
Saccharocarcin A 0.5 mg CAS number 158475-32-2 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£267.34 £297.04
Saccharocarcin A 2.5 mg
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Manufacturer: TOKU-E Item Number: S073-2.5MG
Saccharocarcin A 2.5 mg CAS number 158475-32-2 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£931.09 £1,034.54
Saccharocarcin B 0.5 mg
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Manufacturer: TOKU-E Item Number: S074-0.5MG
Saccharocarcin B 0.5 mg CAS number 158475-33-3 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£267.34 £297.04
Saccharocarcin B 2.5 mg
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Manufacturer: TOKU-E Item Number: S074-2.5MG
Saccharocarcin B 2.5 mg CAS number 158475-33-3 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£931.09 £1,034.54
Salazinic Acid 1 mg
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Manufacturer: TOKU-E Item Number: S122-1MG
Salazinic Acid 1 mg CAS number 521-39-1 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£146.92 £163.24
Salazinic Acid 5 mg
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Manufacturer: TOKU-E Item Number: S122-5MG
Salazinic Acid 5 mg CAS number 521-39-1 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£512.03 £568.92
Salicin 100 g
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Manufacturer: TOKU-E Item Number: S060-100G
Salicin 100 g CAS number 138-52-3 and purity ≥98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£403.16 £447.96
Salicin 25 g
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Manufacturer: TOKU-E Item Number: S060-25G
Salicin 25 g CAS number 138-52-3 and purity ≥98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£142.09 £157.88
Salicin 5 g
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Manufacturer: TOKU-E Item Number: S060-5G
Salicin 5 g CAS number 138-52-3 and purity ≥98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£36.13 £40.14
Salinomycin 25 mg
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Manufacturer: TOKU-E Item Number: S001-25MG
Salinomycin 25 mg CAS number 53003-10-4 and purity ≥90% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£579.94 £644.38
Salinomycin 5 mg
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Manufacturer: TOKU-E Item Number: S001-5MG
Salinomycin 5 mg CAS number 53003-10-4 and purity ≥90% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£177.74 £197.49
Salinomycin ReadyMadeTM Solution 0.5 mL
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Manufacturer: TOKU-E Item Number: S138-0.5ML
Salinomycin ReadyMadeTM Solution 0.5 mL CAS number 53003-10-4 and purity (HPLC, As Is): ≥ 90.0%...
Price excludes taxes and shipping charges. Save -10%
£69.84 £77.60
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Salinomycin ReadyMadeTM Solution 10 x 0.5 mL
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Manufacturer: TOKU-E Item Number: S138-10x0.5ML
Salinomycin ReadyMadeTM Solution 10 x 0.5 mL CAS number 53003-10-4 and purity (HPLC, As Is): ≥ 90.0%...
Price excludes taxes and shipping charges. Save -10%
£558.75 £620.83
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Salinomycin sodium 1 g
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Manufacturer: TOKU-E Item Number: S002-1G
Salinomycin sodium 1 g CAS number 55721-31-8 and purity (On Dried Basis): ≥ 900 u/mg...
Price excludes taxes and shipping charges. Save -10%
£256.26 £284.73
Salinomycin sodium 100 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: S002-100MG
Salinomycin sodium 100 mg CAS number 55721-31-8 and purity (On Dried Basis): ≥ 900 u/mg...
Price excludes taxes and shipping charges. Save -10%
£158.00 £175.55
Salinomycin sodium 50 mg
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Manufacturer: TOKU-E Item Number: S002-50MG
Salinomycin sodium 50 mg CAS number 55721-31-8 and purity (On Dried Basis): ≥ 900 u/mg...
Price excludes taxes and shipping charges. Save -10%
£94.41 £104.90
Sancycline 10 mg
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Manufacturer: TOKU-E Item Number: S075-10MG
Sancycline 10 mg CAS number 808-26-4 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£135.35 £150.39
Sancycline hydrochloride 10 mg
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Manufacturer: TOKU-E Item Number: S076-10MG
Sancycline hydrochloride 10 mg CAS number 6625-20-3 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£129.09 £143.43
Sancycline hydrochloride 50 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: S076-50MG
Sancycline hydrochloride 50 mg CAS number 6625-20-3 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£534.19 £593.54
Sandramycin 1 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: S077-1MG
Sandramycin 1 mg CAS number 100940-65-6 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£267.34 £297.04
Sandramycin 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: S077-5MG
Sandramycin 5 mg CAS number 100940-65-6 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£931.09 £1,034.54
Sarafloxacin Hydrochloride 25 g
Actual product may differ from image
Manufacturer: TOKU-E Item Number: S003-25G
Sarafloxacin Hydrochloride 25 g CAS number 91296-87-6 and purity (On Dried Basis): ≥98.0%...
Price excludes taxes and shipping charges. Save -10%
£179.67 £199.63
Sarafloxacin Hydrochloride 5 g
Actual product may differ from image
Manufacturer: TOKU-E Item Number: S003-5G
Sarafloxacin Hydrochloride 5 g CAS number 91296-87-6 and purity (On Dried Basis): ≥98.0%...
Price excludes taxes and shipping charges. Save -10%
£58.76 £65.29
Sartorypyrone B 1 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: S127-1MG
Sartorypyrone B 1 mg CAS number 1452396-11-0 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£175.82 £195.35
Sartorypyrone B 5 mg
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Manufacturer: TOKU-E Item Number: S127-5MG
Sartorypyrone B 5 mg CAS number 1452396-11-0 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£614.63 £682.92
Sartorypyrone D 0.1 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: S130-0.1MG
Sartorypyrone D 0.1 mg CAS number 1801167-48-5 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£146.92 £163.24
Sartorypyrone D 0.5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: S130-0.5MG
Sartorypyrone D 0.5 mg CAS number 1801167-48-5 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£512.03 £568.92
Sch 38519 0.5 mg
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Manufacturer: TOKU-E Item Number: S078-0.5MG
Sch 38519 0.5 mg CAS number 114970-20-6 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£256.26 £284.73
Sch 38519 2.5 mg
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Manufacturer: TOKU-E Item Number: S078-2.5MG
Sch 38519 2.5 mg CAS number 114970-20-6 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£894.48 £993.87
Sch 725674 1 mg
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Manufacturer: TOKU-E Item Number: S079-1MG
Sch 725674 1 mg CAS number 877061-66-0 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£256.26 £284.73
Sch 725674 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: S079-5MG
Sch 725674 5 mg CAS number 877061-66-0 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£894.48 £993.87
Secnidazole 100 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: S145-100MG
Secnidazole 100 mg CAS number 3366-95-8 and purity >=98.5% (dried basis)...
Price excludes taxes and shipping charges. Save -10%
£114.16 £126.84
Securinine 1 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: S131-1MG
Securinine 1 mg CAS number 5610-40-2 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£146.92 £163.24
Securinine 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: S131-5MG
Securinine 5 mg CAS number 5610-40-2 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£512.03 £568.92
Selamectin 10 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: S068-10MG
Selamectin 10 mg CAS number 220119-17-5 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£159.92 £177.69
Selamectin 500 mg
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Manufacturer: TOKU-E Item Number: S068-50MG
Selamectin 500 mg CAS number 220119-17-5 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£268.30 £298.11
Seselin 1 mg
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Manufacturer: TOKU-E Item Number: S124-1MG
Seselin 1 mg CAS number 523-59-1 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£175.82 £195.35
Seselin 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: S124-5MG
Seselin 5 mg CAS number 523-59-1 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£614.63 £682.92
Setomimycin 1 mg
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Manufacturer: TOKU-E Item Number: S080-1MG
Setomimycin 1 mg CAS number 69431-87-4 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£117.53 £130.59
Setomimycin 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: S080-5MG
Setomimycin 5 mg CAS number 69431-87-4 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£407.98 £453.31
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