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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.

Manufacturer: TOKU-E Item Number: S016-5G
Spectinomycin Sulfate 5 g CAS number 64058-48-6 and purity (On Dried Basis): 93.0-102.0%...
Price excludes taxes and shipping charges. Save -10%
£101.63 £112.93
Manufacturer: TOKU-E Item Number: S113-100MG
Spinosad 100mg CAS number 168316-95-8 and purity ≥95%...
Price excludes taxes and shipping charges. Save -10%
£225.43 £250.47
Manufacturer: TOKU-E Item Number: S114-100MG
Spinosyn A >95% 100mg CAS number 131929-60-7 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£365.60 £406.22
Manufacturer: TOKU-E Item Number: S114-10MG
Spinosyn A >95% 10mg CAS number 131929-60-7 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£178.22 £198.02
Manufacturer: TOKU-E Item Number: S085-1MG
Spinosyn A 17-pseudoaglycone 1 mg CAS number 131929-68-5 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£276.48 £307.20
Manufacturer: TOKU-E Item Number: S085-5MG
Spinosyn A 17-pseudoaglycone 5 mg CAS number 131929-68-5 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£965.29 £1,072.54
Manufacturer: TOKU-E Item Number: S086-1MG
Spinosyn A aglycone 1 mg CAS number 149560-97-4 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£276.48 £307.20
Manufacturer: TOKU-E Item Number: S086-5MG
Spinosyn A aglycone 5 mg CAS number 149560-97-4 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£965.29 £1,072.54
Manufacturer: TOKU-E Item Number: S087-1MG
Spinosyn D 1 mg CAS number 131929-63-0 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£276.48 £307.20
Manufacturer: TOKU-E Item Number: S088-0.5MG
Spinosyn D 17-pseudoaglycone 0.5 mg CAS number 131929-55-0 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£276.48 £307.20
Manufacturer: TOKU-E Item Number: S088-2.5MG
Spinosyn D 17-pseudoaglycone 2.5 mg CAS number 131929-55-0 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£965.29 £1,072.54
Manufacturer: TOKU-E Item Number: S087-5MG
Spinosyn D 5 mg CAS number 131929-63-0 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£965.29 £1,072.54
Manufacturer: TOKU-E Item Number: S089-0.5MG
Spinosyn D aglycone 0.5 mg CAS number 149439-79-2 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£276.48 £307.20
Manufacturer: TOKU-E Item Number: S089-2.5MG
Spinosyn D aglycone 2.5 mg CAS number 149439-79-2 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£965.29 £1,072.54
Manufacturer: TOKU-E Item Number: S115-10MG
Spinosyn D, >90% 10 mg CAS number 131929-63-0 and purity >90% (by HPLC)...
Price excludes taxes and shipping charges. Save -10%
£198.45 £220.50
Manufacturer: TOKU-E Item Number: S115-100MG
Spinosyn D, >90% 100 mg CAS number 131929-63-0 and purity >90% (by HPLC)...
Price excludes taxes and shipping charges. Save -10%
£510.10 £566.78
Manufacturer: TOKU-E Item Number: S007-1G
Spiramycin 1 g CAS number 8025-81-8 and purity (On Dried Basis): ≥ 4100 IU/mg...
Price excludes taxes and shipping charges. Save -10%
£87.67 £97.41
Manufacturer: TOKU-E Item Number: S007-5G
Spiramycin 5 g CAS number 8025-81-8 and purity (On Dried Basis): ≥ 4100 IU/mg...
Price excludes taxes and shipping charges. Save -10%
£300.09 £333.43
Manufacturer: TOKU-E Item Number: S094-25MG
Spiramycin I 25 mg CAS number 8025-81-8 and purity ≥99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£305.87 £339.85
Manufacturer: TOKU-E Item Number: S094-5MG
Spiramycin I 5 mg CAS number 8025-81-8 and purity ≥99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£88.63 £98.48
Manufacturer: TOKU-E Item Number: S133-0.1MG
spiro-Oxanthromicin A 1 mg CAS number 1616622-10-6 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£151.73 £168.59
Manufacturer: TOKU-E Item Number: S133-0.5MG
spiro-Oxanthromicin A 5 mg CAS number 1616622-10-6 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£527.44 £586.04
Manufacturer: TOKU-E Item Number: S095-25MG
Sporidesmolide 25 mg CAS number 11113-90-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£857.87 £953.19
Manufacturer: TOKU-E Item Number: S095-5MG
Sporidesmolide 5 mg CAS number 11113-90-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£245.66 £272.95
Manufacturer: TOKU-E Item Number: S096-0.5MG
Sporidesmolide I 0.5 mg CAS number 2900-38-1 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£263.96 £293.29
Manufacturer: TOKU-E Item Number: S096-2.5MG
Sporidesmolide I 2.5 mg CAS number 2900-38-1 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£921.45 £1,023.84
Manufacturer: TOKU-E Item Number: S097-0.5MG
Sporidesmolide II 0.5 mg CAS number 3200-75-7 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£263.96 £293.29
Manufacturer: TOKU-E Item Number: S097-2.5MG
Sporidesmolide II 2.5 mg CAS number 3200-75-7 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£921.45 £1,023.84
Manufacturer: TOKU-E Item Number: S098-0.5MG
Sporidesmolide III 0.5 mg CAS number 1803-67-4 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£263.96 £293.29
Manufacturer: TOKU-E Item Number: S098-2.5MG
Sporidesmolide III 2.5 mg CAS number 1803-67-4 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£921.45 £1,023.84
Manufacturer: TOKU-E Item Number: S099-0.5MG
Sporidesmolide V 0.5 mg CAS number 127072-57-5 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£263.96 £293.29
Manufacturer: TOKU-E Item Number: S099-2.5MG
Sporidesmolide V 2.5 mg CAS number 127072-57-5 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£921.45 £1,023.84
Manufacturer: TOKU-E Item Number: S100-0.5MG
Stachybotrylactam 0.5 mg CAS number 163391-76-2 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£245.66 £272.95
Manufacturer: TOKU-E Item Number: S100-2.5MG
Stachybotrylactam 2.5 mg CAS number 163391-76-2 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£857.87 £953.19
Manufacturer: TOKU-E Item Number: S125-1MG
Stachybotrysin B 1 mg CAS number 2098376-42-0 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£211.94 £235.49
Manufacturer: TOKU-E Item Number: S125-5MG
Stachybotrysin B 5 mg CAS number 2098376-42-0 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£741.31 £823.67
Manufacturer: TOKU-E Item Number: S101-0.5MG
Stauprimide 0.5 mg CAS number 154589-96-5 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£317.43 £352.70
Manufacturer: TOKU-E Item Number: S101-2.5MG
Stauprimide 2.5 mg CAS number 154589-96-5 and purity >95% by HPLC...
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£1,104.97 £1,227.75
Manufacturer: TOKU-E Item Number: S070-25MG
Staurosporine 25 mg CAS number 62996-74-1 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£779.36 £865.95
Manufacturer: TOKU-E Item Number: S070-5MG
Staurosporine 5 mg CAS number 62996-74-1 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£223.50 £248.33
Manufacturer: TOKU-E Item Number: S102-1MG
Steffimycin B 1 mg CAS number 54526-94-2 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£245.66 £272.95
Manufacturer: TOKU-E Item Number: S102-5MG
Steffimycin B 5 mg CAS number 54526-94-2 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£855.95 £951.05
Manufacturer: TOKU-E Item Number: S134-0.5MG
Stephacidin B 0.5 mg CAS number 360765-75-9 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£181.11 £201.24
Manufacturer: TOKU-E Item Number: S134-2.5MG
Stephacidin B 2.5 mg CAS number 360765-75-9 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£633.41 £703.79
Manufacturer: TOKU-E Item Number: S103-1MG
Sterigmatocystin 1 mg CAS number 10048-13-2 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£121.38 £134.87
Manufacturer: TOKU-E Item Number: S103-5MG
Sterigmatocystin 5 mg CAS number 10048-13-2 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£420.51 £467.23
Manufacturer: TOKU-E Item Number: S067-100MG
Streptidine EvoPure® 100 mg CAS number 85-17-6 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£406.06 £451.17
Manufacturer: TOKU-E Item Number: S128-0.5MG
Streptimidone 0.5 mg CAS number 738-72-7 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£181.11 £201.24
Manufacturer: TOKU-E Item Number: S128-5MG
Streptimidone 5 mg CAS number 738-72-7 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£633.41 £703.79
Manufacturer: TOKU-E Item Number: S135-25MG
Streptomycin 25 mg CAS number 57-92-1 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£179.19 £199.09
Manufacturer: TOKU-E Item Number: S135-5MG
Streptomycin 5 mg CAS number 57-92-1 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£51.54 £57.27
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