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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.

Nosiheptide 1 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: N042-1MG
Nosiheptide 1 mg CAS number 56377-79-8 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£85.74 £95.27
Nosiheptide 5 mg
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Manufacturer: TOKU-E Item Number: N042-5MG
Nosiheptide 5 mg CAS number 56377-79-8 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£296.71 £329.68
Nourseothricin (Streptothricin) Sulfate 10 mg
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Manufacturer: TOKU-E Item Number: N056-10MG
Nourseothricin (Streptothricin) Sulfate 10 mg CAS number 96736-11-7 and purity >85.0%...
Price excludes taxes and shipping charges. Save -10%
£122.35 £135.94
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Novobiocic acid 0.5 mg
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Manufacturer: TOKU-E Item Number: N071-0.5 MG
Novobiocic acid 0.5 mg CAS number 485-23-4 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£179.67 £199.63
Novobiocic acid 2.5 mg
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Manufacturer: TOKU-E Item Number: N071-2.5 MG
Novobiocic acid 2.5 mg CAS number 485-23-4 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£627.63 £697.37
Novobiocin sodium 1 g
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Manufacturer: TOKU-E Item Number: N014-1G
Novobiocin sodium 1 g CAS number 1476-53-5 and purity ≥90% (HPLC)...
Price excludes taxes and shipping charges. Save -10%
£46.72 £51.91
Novobiocin sodium 5 g
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Manufacturer: TOKU-E Item Number: N014-5G
Novobiocin sodium 5 g CAS number 1476-53-5 and purity ≥90% (HPLC)...
Price excludes taxes and shipping charges. Save -10%
£166.18 £184.64
Novobiocin Sodium, Granulized 1 g
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Manufacturer: TOKU-E Item Number: N064-1G
Novobiocin Sodium, Granulized 1 g CAS number 1476-53-5 and purity ≥90% (by HPLC)...
Price excludes taxes and shipping charges. Save -10%
£49.62 £55.13
Novobiocin Sodium, Granulized 5 g
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Manufacturer: TOKU-E Item Number: N064-5G
Novobiocin Sodium, Granulized 5 g CAS number 1476-53-6 and purity ≥90% (by HPLC)...
Price excludes taxes and shipping charges. Save -10%
£185.93 £206.59
NovobiocinTM ReadyMade Solution 1 mL
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Manufacturer: TOKU-E Item Number: N089-1ML
NovobiocinTM ReadyMade Solution 1 mL CAS number 1476-53-5 and purity ≥90.0% (HPLC...
Price excludes taxes and shipping charges. Save -10%
£103.56 £115.07
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NovobiocinTM ReadyMade Solution 10 x 1 mL
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Manufacturer: TOKU-E Item Number: N089-10x1ML
NovobiocinTM ReadyMade Solution 10 x 1 mL CAS number 1476-53-5 and purity ≥90.0% (HPLC...
Price excludes taxes and shipping charges. Save -10%
£642.08 £713.42
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Nybomycin 0.5 mg
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Manufacturer: TOKU-E Item Number: N043-0.5MG
Nybomycin 0.5 mg CAS number 30408-30-1 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£259.15 £287.94
Nybomycin 2.5 mg
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Manufacturer: TOKU-E Item Number: N043-2.5MG
Nybomycin 2.5 mg CAS number 30408-30-1 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£903.15 £1,003.50
Nystatin 25 MU
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Manufacturer: TOKU-E Item Number: N010-25MU
Nystatin 25 MU CAS number 1400-61-9 and purity (On Dried Basis): ≥5000 U/mg...
Price excludes taxes and shipping charges. Save -10%
£99.23 £110.25
Nystatin 5 MU
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Manufacturer: TOKU-E Item Number: N010-5MU
Nystatin 5 MU CAS number 1400-61-9 and purity (On Dried Basis): ≥5000 U/mg...
Price excludes taxes and shipping charges. Save -10%
£26.97 £29.97
Nystatin A1 25 mg
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Manufacturer: TOKU-E Item Number: N044-25MG
Nystatin A1 25 mg CAS number 1400-61-9 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£195.56 £217.29
Nystatin A1 5 mg
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Manufacturer: TOKU-E Item Number: N044-5MG
Nystatin A1 5 mg CAS number 1400-61-9 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£55.87 £62.08
Nystatin ReadyMadeTM Solution 1 mL
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Manufacturer: TOKU-E Item Number: N090-1ML
Nystatin ReadyMadeTM Solution 1 mL CAS number 1400-61-9 and purity ≥85.0% (Nystatin A1)...
Price excludes taxes and shipping charges. Save -10%
£48.65 £54.06
Nystatin ReadyMadeTM Solution 10 x 1 mL
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Manufacturer: TOKU-E Item Number: N090-10x1ML
Nystatin ReadyMadeTM Solution 10 x 1 mL CAS number 1400-61-9 and purity ≥85.0% (Nystatin A1)...
Price excludes taxes and shipping charges. Save -10%
£318.87 £354.30
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O-methylsterigmatocystin 1 mg
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Manufacturer: TOKU-E Item Number: M052-1MG
O-methylsterigmatocystin 1 mg CAS number 17878-69-2 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£434.96 £483.29
O-methylsterigmatocystin 5 mg
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Manufacturer: TOKU-E Item Number: M052-5MG
O-methylsterigmatocystin 5 mg CAS number 17878-69-2 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£1,213.35 £1,348.17
O-methylviridicatin 1 mg
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Manufacturer: TOKU-E Item Number: M054-1MG
O-methylviridicatin 1 mg CAS number 6152-51-4 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£184.97 £205.52
O-methylviridicatin 5 mg
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Manufacturer: TOKU-E Item Number: M054-5MG
O-methylviridicatin 5 mg CAS number 6152-51-4 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£645.93 £717.70
Ochratoxin A 1 mg
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Manufacturer: TOKU-E Item Number: O014-1MG
Ochratoxin A 1 mg CAS number 303-47-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£95.37 £105.97
Ochratoxin A 5 mg
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Manufacturer: TOKU-E Item Number: O014-5MG
Ochratoxin A 5 mg CAS number 303-47-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£332.36 £369.29
Ochratoxin B 1 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: O015-1MG
Ochratoxin B 1 mg CAS number 4825-86-9 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£184.97 £205.52
Ochratoxin B 5 mg
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Manufacturer: TOKU-E Item Number: O015-5MG
Ochratoxin B 5 mg CAS number 4825-86-9 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£645.93 £717.70
Ochratoxin C 1 mg
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Manufacturer: TOKU-E Item Number: O016-1MG
Ochratoxin C 1 mg CAS number 4865-85-4 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£261.55 £290.61
Ochratoxin C 5 mg
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Manufacturer: TOKU-E Item Number: O016-5MG
Ochratoxin C 5 mg CAS number 4865-85-4 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£912.78 £1,014.20
Octadecanoyl-L-homoserine lactone 25 mg
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Manufacturer: TOKU-E Item Number: O036-25MG
Octadecanoyl-L-homoserine lactone 25 mg CAS number 479050-96-9 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£208.57 £231.74
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Octadecanoyl-L-homoserine lactone 5 mg
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Manufacturer: TOKU-E Item Number: O036-5MG
Octadecanoyl-L-homoserine lactone 5 mg CAS number 479050-96-9 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£60.21 £66.90
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Octanoyl-L-homoserine lactone 25 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: O035-25MG
Octanoyl-L-homoserine lactone 25 mg CAS number 147852-84-4 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£208.57 £231.74
Octanoyl-L-homoserine lactone 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: O035-5MG
Octanoyl-L-homoserine lactone 5 mg CAS number 147852-84-4 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£60.21 £66.90
Ofloxacin 10g
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Manufacturer: TOKU-E Item Number: O001-10G
Ofloxacin 10g CAS number 82419-36-1 and purity (On Dried Basis): 98.5-101.5%...
Price excludes taxes and shipping charges. Save -10%
£204.71 £227.46
Ofloxacin 1g
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Manufacturer: TOKU-E Item Number: O001-1G
Ofloxacin 1g CAS number 82419-36-1 and purity (On Dried Basis): 98.5-101.5%...
Price excludes taxes and shipping charges. Save -10%
£47.68 £52.98
Ofloxacin Hydrochloride 1 g
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Manufacturer: TOKU-E Item Number: O039-1G
Ofloxacin Hydrochloride 1 g CAS number 118120-51-7 and purity ≥98% (HPLC)...
Price excludes taxes and shipping charges. Save -10%
£43.83 £48.70
Ofloxacin Hydrochloride 10 g
Actual product may differ from image
Manufacturer: TOKU-E Item Number: O039-10G
Ofloxacin Hydrochloride 10 g CAS number 118120-51-7 and purity ≥98% (HPLC)...
Price excludes taxes and shipping charges. Save -10%
£172.93 £192.14
Oleandomycin 25 mg
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Manufacturer: TOKU-E Item Number: O017-25MG
Oleandomycin 25 mg CAS number 3922-90-5 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£503.84 £559.82
Oleandomycin 5 mg
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Manufacturer: TOKU-E Item Number: O017-5MG
Oleandomycin 5 mg CAS number 3922-90-5 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£144.50 £160.56
Oligomycin A 25 mg
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Manufacturer: TOKU-E Item Number: O013-25MG
Oligomycin A 25 mg CAS number 579-13-5 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£440.74 £489.71
Oligomycin A 5 mg
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Manufacturer: TOKU-E Item Number: O013-5MG
Oligomycin A 5 mg CAS number 579-13-5 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£126.20 £140.22
Oligomycin B 25 mg
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Manufacturer: TOKU-E Item Number: O018-25MG
Oligomycin B 25 mg CAS number 11050-94-5 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£440.74 £489.71
Oligomycin B 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: O018-5MG
Oligomycin B 5 mg CAS number 11050-94-5 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£126.20 £140.22
Oligomycin C 1 mg
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Manufacturer: TOKU-E Item Number: O019-1MG
Oligomycin C 1 mg CAS number 11052-72-5 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£272.63 £302.92
Oligomycin C 5 mg
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Manufacturer: TOKU-E Item Number: O019-5MG
Oligomycin C 5 mg CAS number 11052-72-5 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£949.87 £1,055.41
Oligomycin D 0.5 mg
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Manufacturer: TOKU-E Item Number: O020-0.5MG
Oligomycin D 0.5 mg CAS number 1404-59-7 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£261.55 £290.61
Oligomycin D 2.5 mg
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Manufacturer: TOKU-E Item Number: O020-2.5MG
Oligomycin D 2.5 mg CAS number 1404-59-7 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£912.78 £1,014.20
Oligomycin E 1 mg
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Manufacturer: TOKU-E Item Number: O021-1MG
Oligomycin E 1 mg CAS number 110231-34-0 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£261.55 £290.61
Oligomycin E 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: O021-5MG
Oligomycin E 5 mg CAS number 110231-34-0 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£912.78 £1,014.20
Oligomycins 10 mg
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Manufacturer: TOKU-E Item Number: O037-10MG
Oligomycins 10 mg CAS number 1404-19-9 and purity >99.0%...
Price excludes taxes and shipping charges. Save -10%
£159.92 £177.69
Oligomycins 100 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: O037-100MG
Oligomycins 100 mg CAS number 1404-19-9 and purity >99.0%...
Price excludes taxes and shipping charges. Save -10%
£1,059.21 £1,176.90
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