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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.

Ceftolozane Sulfate stabilized w/ arginine 50 mg
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Manufacturer: TOKU-E Item Number: C261-50MG
Ceftolozane Sulfate stabilized w/ arginine 50 mg CAS number 936111-64-2 and purity >98.0% ...
Price excludes taxes and shipping charges. Save -10%
£630.52 £700.58
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Ceftriaxone free acid 1 g
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Manufacturer: TOKU-E Item Number: C074-1G
Ceftriaxone free acid 1 g CAS number 73384-59-5 and purity ≥99.0% (HPLC)...
Price excludes taxes and shipping charges. Save -10%
£201.83 £224.25
Ceftriaxone free acid 250 mg
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Manufacturer: TOKU-E Item Number: C074-250MG
Ceftriaxone free acid 250 mg CAS number 73384-59-5 and purity ≥99.0% (HPLC)...
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£100.67 £111.86
Ceftriaxone Sodium, USP 1 g
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Manufacturer: TOKU-E Item Number: C022-1G
Ceftriaxone Sodium, USP 1 g CAS number 104376-79-6 (trihydrate); 74578-69-1 (Dried) and purity (On Dried Basis): ≥795 µg/mg...
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£249.51 £277.23
Ceftriaxone Sodium, USP 250 mg
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Manufacturer: TOKU-E Item Number: C022-250MG
Ceftriaxone Sodium, USP 250 mg CAS number 104376-79-6 (trihydrate); 74578-69-1 (Dried) and purity (On Dried Basis): ≥795 µg/mg...
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£83.81 £93.12
Cefuroxime free acid 1 g
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Manufacturer: TOKU-E Item Number: C282-1G
Cefuroxime free acid 1 g CAS number 55268-75-2 and purity >=98% (anhydrous basis)...
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£120.42 £133.80
Cefuroxime free acid 5 g
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Manufacturer: TOKU-E Item Number: C282-5G
Cefuroxime free acid 5 g CAS number 55268-75-2 and purity >=98% (anhydrous basis)...
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£396.90 £441.00
Cefuroxime Sodium 1 g
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Manufacturer: TOKU-E Item Number: C023-1G
Cefuroxime Sodium 1 g CAS number 56238-63-2 and purity (On Dried Basis): ≥ 86.0%...
Price excludes taxes and shipping charges. Save -10%
£117.53 £130.59
Cefuroxime Sodium 5 g
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Manufacturer: TOKU-E Item Number: C023-5G
Cefuroxime Sodium 5 g CAS number 56238-63-2 and purity (On Dried Basis): ≥ 86.0%...
Price excludes taxes and shipping charges. Save -10%
£389.20 £432.44
Cellocidin 25 mg
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Manufacturer: TOKU-E Item Number: C163-25MG
Cellocidin 25 mg CAS number 543-21-5 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£308.75 £343.06
Cellocidin 5 mg
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Manufacturer: TOKU-E Item Number: C163-5MG
Cellocidin 5 mg CAS number 543-21-5 and purity >95% by HPLC...
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£88.63 £98.48
Cephalexin Hydrate 10 g
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Manufacturer: TOKU-E Item Number: C024-10G
Cephalexin Hydrate 10 g CAS number 23325-78-2 and purity 950-1030 µg/mg...
Price excludes taxes and shipping charges. Save -10%
£232.65 £258.50
Cephalexin Hydrate 25 g
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Manufacturer: TOKU-E Item Number: C024-25G
Cephalexin Hydrate 25 g CAS number 23325-78-2 and purity 950-1030 µg/mg...
Price excludes taxes and shipping charges. Save -10%
£448.93 £498.81
Cephalexin Hydrate 5 g
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Manufacturer: TOKU-E Item Number: C024-5G
Cephalexin Hydrate 5 g CAS number 23325-78-2 and purity 950-1030 µg/mg...
Price excludes taxes and shipping charges. Save -10%
£133.43 £148.25
Cephalomannine 10 mg
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Manufacturer: TOKU-E Item Number: C075-10MG
Cephalomannine 10 mg CAS number 71610-00-9 and purity ≥98% (HPLC)...
Price excludes taxes and shipping charges. Save -10%
£427.73 £475.26
Cephalomannine 25 mg
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Manufacturer: TOKU-E Item Number: C075-25MG
Cephalomannine 25 mg CAS number 71610-00-9 and purity ≥98% (HPLC)...
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£610.29 £678.10
Cephalonium 100 mg
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Manufacturer: TOKU-E Item Number: C246-100MG
Cephalonium 100 mg CAS number 5575-21-3 and purity 95% - 103.5 % (Dried)...
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£121.38 £134.87
Cephalonium 250 mg
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Manufacturer: TOKU-E Item Number: C246-250MG
Cephalonium 250 mg CAS number 5575-21-3 and purity 95% - 103.5 % (Dried)...
Price excludes taxes and shipping charges. Save -10%
£323.69 £359.65
Cephalothin Sodium, USP 1 g
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Manufacturer: TOKU-E Item Number: C026-1G
Cephalothin Sodium, USP 1 g CAS number 58-71-9 and purity ≥ 850 µg/mg...
Price excludes taxes and shipping charges. Save -10%
£112.23 £124.70
Cephalothin Sodium, USP 500 mg
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Manufacturer: TOKU-E Item Number: C026-500MG
Cephalothin Sodium, USP 500 mg CAS number 58-71-9 and purity ≥ 850 µg/mg...
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£74.66 £82.96
Cephapirin benzathine 100 mg
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Manufacturer: TOKU-E Item Number: C217-100MG
Cephapirin benzathine 100 mg CAS number 97468-37-6 and purity ≥95%...
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£363.19 £403.54
Cephapirin Sodium 100mg
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Manufacturer: TOKU-E Item Number: C027-100MG
Cephapirin Sodium 100mg CAS number 24356-60-3 and purity ≥95% (HPLC)...
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£133.43 £148.25
Cephapirin Sodium 500mg
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Manufacturer: TOKU-E Item Number: C027-500MG
Cephapirin Sodium 500mg CAS number 24356-60-3 and purity ≥95% (HPLC)...
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£357.41 £397.12
Cercosporamide 1 mg
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Manufacturer: TOKU-E Item Number: C164-1MG
Cercosporamide 1 mg CAS number 131436-22-1 and purity >95% by HPLC...
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£267.34 £297.04
Cercosporamide 5 mg
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Manufacturer: TOKU-E Item Number: C164-5MG
Cercosporamide 5 mg CAS number 131436-22-1 and purity >95% by HPLC...
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£931.09 £1,034.54
Cercosporin 1 mg
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Manufacturer: TOKU-E Item Number: C165-1MG
Cercosporin 1 mg CAS number 35082-49-6 and purity >95% by HPLC...
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£111.27 £123.63
Cercosporin 5 mg
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Manufacturer: TOKU-E Item Number: C165-5MG
Cercosporin 5 mg CAS number 35082-49-6 and purity >95% by HPLC...
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£389.20 £432.44
Cerulenin 25 mg
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Manufacturer: TOKU-E Item Number: C151-25MG
Cerulenin 25 mg CAS number 17397-89-6 and purity >95% by HPLC...
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£591.51 £657.23
Cerulenin 5 mg
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Manufacturer: TOKU-E Item Number: C151-5MG
Cerulenin 5 mg CAS number 17397-89-6 and purity >95% by HPLC...
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£161.36 £179.29
Cetrimide 100 g
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Manufacturer: TOKU-E Item Number: C062-100G
Cetrimide 100 g CAS number 8044-71-1 and purity ≥99.0%...
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£146.92 £163.24
Cetrimide 25 g
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Manufacturer: TOKU-E Item Number: C062-25G
Cetrimide 25 g CAS number 8044-71-1 and purity ≥99.0%...
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£62.62 £69.58
Cetylpyridinium chloride 100 g
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Manufacturer: TOKU-E Item Number: C150-100G
Cetylpyridinium chloride 100 g CAS number 6004-24-6 and purity (On Dried Basis): 99.0% - 102.0%...
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£69.84 £77.60
Cetylpyridinium chloride 25 g
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Manufacturer: TOKU-E Item Number: C150-25G
Cetylpyridinium chloride 25 g CAS number 6004-24-6 and purity (On Dried Basis): 99.0% - 102.0%...
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£32.75 £36.39
Cetyltrimethyl Ammonium Bromide 100 g
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Manufacturer: TOKU-E Item Number: C063-100G
Cetyltrimethyl Ammonium Bromide 100 g CAS number 57-09-0 and purity ≥ 99.0%...
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£59.72 £66.36
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Cetyltrimethyl Ammonium Bromide 250 g
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Manufacturer: TOKU-E Item Number: C063-250G
Cetyltrimethyl Ammonium Bromide 250 g CAS number 57-09-0 and purity ≥ 99.0%...
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£135.35 £150.39
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Cetyltrimethyl Ammonium Bromide 500 g
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Manufacturer: TOKU-E Item Number: C063-500G
Cetyltrimethyl Ammonium Bromide 500 g CAS number 57-09-0 and purity ≥ 99.0%...
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£236.50 £262.78
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Chaetocin 1 mg
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Manufacturer: TOKU-E Item Number: C166-1MG
Chaetocin 1 mg CAS number 28097-03-2 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£267.34 £297.04
Chaetocin 5 mg
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Manufacturer: TOKU-E Item Number: C166-5MG
Chaetocin 5 mg CAS number 28097-03-2 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£931.09 £1,034.54
Chaetoglobosin A 0.1 mg
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Manufacturer: TOKU-E Item Number: C266-.01MG
Chaetoglobosin A 0.1 mg CAS number 50335-03-0 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£146.92 £163.24
Chaetoglobosin A 0.5 mg
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Manufacturer: TOKU-E Item Number: C266-0.5MG
Chaetoglobosin A 0.5 mg CAS number 50335-03-0 and purity >99% by HPLC...
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£512.03 £568.92
Chaetoviridin A 0.5 mg
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Manufacturer: TOKU-E Item Number: C267-0.5MG
Chaetoviridin A 0.5 mg CAS number 128252-98-2 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£146.92 £163.24
Chaetoviridin A 2.5 mg
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Manufacturer: TOKU-E Item Number: C267-2.5MG
Chaetoviridin A 2.5 mg CAS number 128252-98-2 and purity >99% by HPLC...
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£512.03 £568.92
Chartreusin 25 mg
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Manufacturer: TOKU-E Item Number: C167-25MG
Chartreusin 25 mg CAS number 6377-18-0 and purity >95% by HPLC...
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£632.45 £702.72
Chartreusin 5 mg
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Manufacturer: TOKU-E Item Number: C167-5MG
Chartreusin 5 mg CAS number 6377-18-0 and purity >95% by HPLC...
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£181.59 £201.77
Chevalone E 0.5 mg
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Manufacturer: TOKU-E Item Number: C257-0.5MG
Chevalone E 0.5 mg CAS number 1315451-94-5 and purity >99% by HPLC...
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£185.93 £206.59
Chevalone E 2.5 mg
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Manufacturer: TOKU-E Item Number: C257-2.5MG
Chevalone E 2.5 mg CAS number 1315451-94-5 and purity >99% by HPLC...
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£647.38 £719.31
Chicoric acid 10 mg
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Manufacturer: TOKU-E Item Number: C158-10MG
Chicoric acid 10 mg CAS number 6537-80-0 and purity nan...
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£86.71 £96.34
Chicoric acid 25 mg
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Manufacturer: TOKU-E Item Number: C158-25MG
Chicoric acid 25 mg CAS number 6537-80-0 and purity nan...
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£154.13 £171.26
Chloramphenicol acetate 25 mg
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Manufacturer: TOKU-E Item Number: C172-25MG
Chloramphenicol acetate 25 mg CAS number 10318-16-8 and purity >95% by HPLC...
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£503.35 £559.28
Chloramphenicol acetate 5 mg
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Manufacturer: TOKU-E Item Number: C172-5MG
Chloramphenicol acetate 5 mg CAS number 10318-16-8 and purity >95% by HPLC...
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£144.02 £160.02
Chloramphenicol Palmitate 1g
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Manufacturer: TOKU-E Item Number: C168-1G
Chloramphenicol Palmitate 1g CAS number 530-43-8 and purity >99% by HPLC...
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£59.72 £66.36
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