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Standard

Standard Substance Protein assay reagent Titration standard Forensic and veterinary standards Analytical Standards Spectral Standards Chemistry Cosmetics Standard Volatile organic compounds (VOCs) Clinical Standards Veterinary drug and Pesticide residues Agricultural and environmental standards Chromatography Standards Life Science Standards Food and cosmetics standards Food and beverage standards Inorganic single element standard solution Pharmaceutical Impurity Reference Standards Water Testing Standards Organic Standard Solutions Organic Pollutant Standards Chinese medicine standards
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In the analysis work, it often demanded to apply high-quality compound with the exact content being accurate in order to be compared as the detection control or used to calibrate the instrument, the compound is known as standard sample.
Standard refers to the standard substance used for measuring the potency of biological products. When the production department submits to a higher authority for approval of the quality standard of the biological product, they should also provide the standard sample (indicated in unit (μ)) used for measuring the potency of the tested product.

According to different application, the verification products can be divided into biological standard for the testing of biological products, endocrine drugs, antibiotics and other bioassay and chemical standards including:
1 chemical standards used for calibration of the instrument;
2 chemical reference standards used for calibration of the ultraviolet or infrared spectrum of the drugs;
3 control standards used for the purity test of drugs as well as the impurity control or as the control standards for content determination of the medicine.

In the page 67 of the appendix in the People's Republic of China Pharmacopoeia 1990 1st edition, we can find hundreds kinds of standards including bornyl ester acetate, eugenol and panaxadiol as well as 39 kinds of control medicine for the purify inspection of traditional Chinese medicine, impurity control or the content determination.

International standards
This refers to standard sample, with the potency units of the existing international standard sample potency units as baseline, undergoing further calibration of its potency units on the basis of a wide range of international cooperation. Its potency is expressed in 1U. For a certain product, for the establishment of the first international standard sample, the determination of its potency units should be consulted and decided by the Committee of Experts before the announcement. The international standard is a standard reference substance for worldwide preparation of national standards, so that the international standards can achieve unity.

Reagents and standards
All reagents in the food analysis laboratories should be clearly labeled to indicate the following: 1 name; 2 the date of preparation; 3 Signature from the people in charge; 4 if necessary, we need to add content such as safety and validity and so on.
Most food analysis should use standard sample as reference for qualitative and quantitative determination. The standard sample should be classified according to the following classification methods: 1 international standard; 2 national standards; 3 internal standard; 4 other standards.
Receptacle for reference standards should be clearly affixed to the label, to indicate the following: 1 name; 2 standard document number; 3 Opening times; 4 Validity; 5 Signature.
In addition, the laboratory should keep all the necessary specific files for all the necessary reference standards.
Capacity analysis standard solution should also be strictly managed. It should be clearly posted on all the standard solution containers with labels to indicate: 1 name; 2 concentration; 3 formulation date; 4 No of formulated procedures; 5 storage conditions; 6 validity; 7 Signature from people in charge.

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Structure:
Chemical Name:
Quetiapine IMpurity [2-(2-Piperazin-1-yl)ethoxy)ethanol]
CAS:
2206135-50-2
MF:
C25H18N2S2
Chemical Name:
Rabeprazole iMpurity (Chloro interMediate)
Structure:
Chemical Name:
TaMsulosin IMpurity F
MF:
C20H28N2O5S
Structure:
Chemical Name:
TiaMulin IMpurity E (TiaMulone,11-Oxo TiaMulin)
CAS:
113323-39-0
MF:
C28H45NO4S
Structure:
Chemical Name:
2-(2-(4-(Dibenzo[b,f][1,4]thiazepin-11-yl)piperazin-1-yl)ethoxy)ethanol
CAS:
848814-27-7
MF:
C21H27N3O3S
Structure:
Chemical Name:
(3aR,7R,7aR)-2,2-Diethyl-3a,6,7,7a-tetrahydro-7-[(Methylsulfonyl)oxy]-1,3-benzodioxole-5-carboxylic Acid Ethyl Ester
CAS:
204254-90-0
MF:
C15H24O7S
Structure:
Chemical Name:
TorseMide Carboxylic Acid
CAS:
113844-99-8
MF:
C16H18N4O5S
Structure:
Chemical Name:
(3S,5R)-Fluvastatin SodiuM Salt
CAS:
94061-81-1
MF:
C24H25FNNaO4
Structure:
Chemical Name:
(6-BroMo-2-ethyl-3-benzofuranyl)(3,5-dibroMo-4-hydroxyphenyl)Methanone
CAS:
1402819-05-9
MF:
C17H11Br3O3
Structure:
Chemical Name:
(S)-N-(1-(3-MethylbutanaMido)-1-oxo-3-phenylpropan-2-yl)pyrazine-2-carboxaMide
CAS:
862894-96-0
MF:
C19H22N4O3
Structure:
Chemical Name:
Ticagrelor iMpurity
CAS:
1882095-51-3
MF:
C27H45N5O8S
Structure:
Chemical Name:
cefaclor iMpurity G
CAS:
67308-21-8
MF:
C16H17N3O4S
Chemical Name:
Rupatadine iMpurity E
Structure:
Chemical Name:
Tadalafil iMpurity D
CAS:
951661-81-7
MF:
C22H20ClN3O4
Structure:
Chemical Name:
2-Thiopheneacetic acid, α-hydroxy-α-2-thienyl-, (3R)-1-azabicyclo[2.2.2]oct-3-yl ester
CAS:
320347-97-5
MF:
C17H19NO3S2
Chemical Name:
benzbroMarone iMpurity
Structure:
Chemical Name:
Dasatinib iMpurity
CAS:
1184919-23-0
MF:
C22H27N7O2S
Chemical Name:
eszopiclone iMpurity
Structure:
Chemical Name:
Ozagrel methylester
CAS:
866157-50-8
MF:
C13H12N2O2
Structure:
Chemical Name:
2-Propanol, 1-[2-(2-methoxyethyl)phenoxy]-3-[(1-methylethyl)amino]-
CAS:
163685-38-9
MF:
C15H25NO3
Structure:
Chemical Name:
5-BroModescyano CitalopraM
CAS:
64169-39-7
MF:
C19H21BrFNO
Structure:
Chemical Name:
Aripiprazole N,N-Dioxide
CAS:
573691-13-1
MF:
C23H27Cl2N3O4
Structure:
Chemical Name:
Deschloro Cetirizine Dihydrochloride
CAS:
83881-54-3
MF:
C21H26N2O3
Chemical Name:
fenofibrate iMpurity
Structure:
Chemical Name:
6,11-Di-O-Methyl ErythroMycin
CAS:
81103-14-2
MF:
C39H71NO13
Structure:
Chemical Name:
ent-OseltaMivir Phosphate
CAS:
1035895-89-6
MF:
C16H29N2O8P
Structure:
Chemical Name:
3,5,3',5'-Tetraiodo Thyrolactic Acid
CAS:
7069-47-8
MF:
C15H10I4O5
Structure:
Chemical Name:
3-cyano-4-isobutoxybenzaMide
CAS:
161718-85-0
MF:
C12H14N2O2
Structure:
Chemical Name:
Caffeidinecarboxylic acid
CAS:
54536-15-1
MF:
C8H12N4O3
Structure:
Chemical Name:
1-Keto BaMbuterol
CAS:
112935-94-1
MF:
C18H27N3O5
Structure:
Chemical Name:
7-Chloro-4-(4-hydroxyanilino)quinoline
CAS:
81099-86-7
MF:
C15H11ClN2O
Structure:
Chemical Name:
Desfluoro EzetiMibe
CAS:
302781-98-2
MF:
C24H22FNO3
Structure:
Chemical Name:
5-(2-Bromo-1-oxobutyl)-8-hydroxy-2(1H)-quinolinone
CAS:
59827-93-9
MF:
C13H12BrNO3
Structure:
Chemical Name:
Ribavirin Related Compound A (15 mg) (1-beta-D-ribofuranosyl-1H-1,2,4-triazole-3-carboxylic acid)
CAS:
39925-19-4
MF:
C8H11N3O6
Structure:
Chemical Name:
3-(3-TRIFLUOROMETHYL-PHENYL)-PROPYLAMINE
CAS:
104774-87-0
MF:
C10H12F3N
Structure:
Chemical Name:
4-(3,4-Dichloro-phenyl)-3,4-dihydro-2H-naphthalen-1-one
CAS:
124379-29-9
MF:
C16H12Cl2O
Structure:
Chemical Name:
(4-(2-(azepan-1-yl)ethoxy)phenyl)Methanol
CAS:
223251-16-9
MF:
C15H23NO2
Structure:
Chemical Name:
4-HYDROXY PROPOFOL
CAS:
1988-10-9
MF:
C12H18O2
Structure:
Chemical Name:
(1R,2R)-2-(3,4-difluorophenyl)cyclopropanecarboxylic acid
CAS:
220352-36-3
MF:
C10H8F2O2
Structure:
Chemical Name:
(2S,4S)-4-[4-(3-Methyl-1-phenyl-1H-pyrazol-5-yl)-1-piperazinyl]-2-(3-thiazolidinylcarbonyl)-1-pyrrolidinecarboxylic acid tert-butyl ester
CAS:
401566-80-1
MF:
C27H38N6O3S
Structure:
Chemical Name:
trans-4,5-Dichloro-4,5-diMethyl-1,3-dioxolan-2-one
CAS:
116857-05-7
MF:
C5H6Cl2O3
Structure:
Chemical Name:
4-Methoxy-5-(3-Morpholinopropoxy)-2-nitrobenzaMide
CAS:
861453-16-9
MF:
C15H21N3O6
Structure:
Chemical Name:
5-chloro-3-sulfo-2-Thiophenecarboxylic acid
CAS:
187746-94-7
MF:
C5H3ClO5S2
Structure:
Chemical Name:
2,2'-(4,4'-(3,3'-(isopropylazanediyl)bis(2-hydroxypropane-3,1-diyl))bis(oxy)bis(4,1-phenylene))diacetaMide
CAS:
87619-83-8
MF:
C25H35N3O6
Structure:
Chemical Name:
5-Methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine-2-carboxylic acid hydrochloride
CAS:
720720-96-7
MF:
C8H11ClN2O2S
Structure:
Chemical Name:
3,3'-diMethyl-1,1'-diphenyl-1H,1'H-4,4'-bipyrazole-5,5'-diol
CAS:
177415-76-8
MF:
C20H18N4O2
Structure:
Chemical Name:
5-(2-cyclopropyl-1-(3-fluorophenyl)-2-oxoethyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridin-2-yl acetate
CAS:
1391194-39-0
MF:
C20H20FNO3S
Structure:
Chemical Name:
IMidafenacin iMpurity
CAS:
503599-41-5
MF:
C18H20N2O2
Structure:
Chemical Name:
latanoprost iMpurity
CAS:
733036-95-8
MF:
C25H35FO5
Structure:
Chemical Name:
Irbesartan IMpurity D
MF:
C25H28N6O
Structure:
Chemical Name:
Ondansetron HCl IMpurity-G
CAS:
99614-03-6
MF:
C17H17N3O
Structure:
Chemical Name:
lithiuM 2-(4-(Methylsulfonyl)phenyl)acetate
CAS:
1421227-96-4
MF:
C9H11LiO4S
Structure:
Chemical Name:
Anastrozole IMpurity (3-(1-Cyano-1-Methylethyl)-alfa,alfa-diMethyl-5-(1H-,1,2,4-triazole-1-ylMethyl)-benzeneacetaMide)
CAS:
120512-03-0
MF:
C17H21N5O
Chemical Name:
AtracuriuM IMpurity I (Mixture of cis, trans(I1), cis, cis(I2), tans, trans IsoMer)
Structure:
Chemical Name:
HYDROXY ITRACONAZOLE
CAS:
112559-91-8
MF:
C35H38Cl2N8O5
Structure:
Chemical Name:
1-HEXADECANOYL-2-(P-NITROPHENOXYSUCCINOYL)-SN-GLYCERYL-3-PHOSPHORYLCHOLINE
CAS:
170569-87-6
MF:
C16H12F3N3O2S
Structure:
Chemical Name:
N-methyl-N-(4-nitrophenyl)-2-(piperazin-1-yl)acetamide
CAS:
1038972-16-5
MF:
C13H18N4O3
Structure:
Chemical Name:
1,4-BIS[3,4-DIHYDRO-2(1H)-QUINOLINON-7-OXY]BUTANE
CAS:
882880-12-8
MF:
C22H24N2O4
Structure:
Chemical Name:
(R)-SN-38
CAS:
647852-82-2
MF:
C22H20N2O5
Structure:
Chemical Name:
5'-Deoxy-5-fluoro-N4-(isopentyloxycarbonyl)cytidine
CAS:
162204-30-0
MF:
C15H22FN3O6
Structure:
Chemical Name:
4-[(2,3-Dihydro-5,6-dimethoxy-1H-inden-2-yl)methyl]-1-(phenylmethyl)piperidine Hydrochloride
CAS:
1034439-57-0
MF:
C24H32ClNO2
Structure:
Chemical Name:
5-(aminosulfonyl)-2-methoxybenzamide
CAS:
52395-25-2
MF:
C8H10N2O4S
Structure:
Chemical Name:
PIPERIDINE-3-CARBOXYLIC ACID (2,6-DIMETHYL-PHENYL)-AMIDE
CAS:
337488-90-1
MF:
C14H20N2O
Structure:
Chemical Name:
N-Desmethyl Citalopram-d4 Oxalate
CAS:
62498-68-4
MF:
C21H21FN2O5
Structure:
Chemical Name:
2-Ethoxy-6-nitro-9-acridinamine
CAS:
20304-70-5
MF:
C15H13N3O3
Structure:
Chemical Name:
4-O-Carboxymethyl-21-deoxy-20-hydroxy-21-oxorifamycin
CAS:
15271-73-5
MF:
C39H47NO15
Structure:
Chemical Name:
(3,4-Dimethoxyphenyl)isopropyl ketone
CAS:
14046-55-0
MF:
C12H16O3
Structure:
Chemical Name:
2,3-Dichloro-5,6-diphenylpyrazine
CAS:
57038-62-7
MF:
C16H10Cl2N2
Structure:
Chemical Name:
CHLOROAC-PRO-OH
CAS:
23500-10-9
MF:
C7H10ClNO3
Structure:
Chemical Name:
2,4-Dihydro-4-[4-[4-(4-methoxyphenyl)-1-piperazinyl]phenyl]-2-(1-methylpropyl)-3H-1,2,4-triazol-3-one
CAS:
252964-68-4
MF:
C23H29N5O2
Structure:
Chemical Name:
2-(2-Methoxyphenoxy)ethanol
CAS:
18181-71-0
MF:
C9H12O3
Structure:
Chemical Name:
DesvancosaMinyl VancoMycin
CAS:
101485-50-1
MF:
C59H62Cl2N8O22
Structure:
Chemical Name:
rac N-Desbutyroyl Acebutolol
CAS:
57898-80-3
MF:
C14H22N2O3
Structure:
Chemical Name:
rac-Clopidogrel-MP Endo Derivative
CAS:
1346598-12-6
MF:
C25H26ClNO6S
Structure:
Chemical Name:
1,1'-N-[Methylenebis(sulphanediylethylene)]bis(N'-Methyl-2-nitroethene-1,1-diaMine
CAS:
1331637-48-9
MF:
C11H22N6O4S2
Structure:
Chemical Name:
ent-LaMivudine
CAS:
134680-32-3
MF:
C8H11N3O3S
Structure:
Chemical Name:
Formoterol O-β-D-Glucuronide
CAS:
615551-59-2
MF:
C25H32N2O10
Structure:
Chemical Name:
Mono-POC Tenofovir 6-Isopropyl CarbaMate
CAS:
1244022-56-7
MF:
C18H28N5O9P
Structure:
Chemical Name:
N-Methyl Iso Desloratadine
CAS:
183198-48-3
MF:
C20H21ClN2
Structure:
Chemical Name:
Tartaric Acid Isopropyl Ester
CAS:
116601-09-3
MF:
C7H12O6
Structure:
Chemical Name:
Vardenafil Acetyl Analogue
CAS:
1261351-28-3
MF:
C25H34N6O3
Structure:
Chemical Name:
N1-Methylbenzene-1,2,4-triaMine
CAS:
60651-29-8
MF:
C7H11N3
Chemical Name:
RocuroniuMbroMide iMpurity H
Structure:
Chemical Name:
1-[(2'-carbaMoylbiphenyl-4-yl) Methyl]-2-ethoxybenziMidazole-7-carboxylic acid
CAS:
1696392-11-6
MF:
C24H21N3O4
Structure:
Chemical Name:
5-chloro-1-(3-diMethylaMinopropyl)-1-(4-fluorophenyl)-phthalan
CAS:
64169-45-5
MF:
C19H21ClFNO
Chemical Name:
dextroMethorphanone
Structure:
Chemical Name:
oxiracetaM related substance ISF3886
CAS:
120428-80-0
MF:
C8H13N3O4
Structure:
Chemical Name:
Carvedilol IMpurity D
CAS:
1391052-16-6
MF:
C39H39N3O6
Structure:
Chemical Name:
DL-2-(4-Carboxyphenyl)propionic Acid
CAS:
67381-50-4
MF:
C10H10O4
Structure:
Chemical Name:
Betamethasone 17-Propionate 21-Mesylate
CAS:
15423-80-0
MF:
C26H35FO8S
Structure:
Chemical Name:
ClarithroMycin EP IMpurity F
CAS:
128940-83-0
MF:
C39H71NO13
Structure:
Chemical Name:
3(R)-Hydroperoxy Simvastatin
CAS:
1092716-42-1
MF:
C25H38O7
Structure:
Chemical Name:
Albendazole EP IMpurity F
CAS:
80983-45-5
MF:
C10H11N3O2S
Structure:
Chemical Name:
10-Dehydrobaccatin V
CAS:
151636-94-1
MF:
C29H34O10
Structure:
Chemical Name:
DoxylaMine EP IMpurity A
CAS:
873407-01-3
MF:
C17H22N2O
Structure:
Chemical Name:
((1R,3R,E)-5-((E)-2-((1R,3aS,7aR)-1-((2R,5R,E)-5,6-diMethylhept-3-en-2-yl)-7a-Methyldihydro-1H-inden-4(2H,5H,6H,7H,7aH)-ylidene)ethylidene)-4-Methylenecyclohexane-1,3-diyl)bis(oxy)bis(tert-butyldiMethylsilane)
CAS:
115540-28-8
MF:
C40H72O2Si2
Structure:
Chemical Name:
Clopidogrel EP IMpurity D
CAS:
1421283-60-4
MF:
C24H21Cl2NO4S
Structure:
Chemical Name:
Loratadine IMpurity E
MF:
C22H23ClN2O2
Structure:
Chemical Name:
Metoprolol IMpurity E
MF:
C15H25NO3
Chemical Name:
IMp. A (EP): 4-Methyl-6-(1-Methyl-1H-benziMidazol-2-yl)-2-propyl-1H-benziMidazole