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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:
2-Amino-4-trifluoromethoxybenzothiazole
CAS:
235101-36-7
MF:
C8H5F3N2OS
Structure:
Chemical Name:
7-[(4S)-4-Amino-6-azaspiro[2.4]heptan-6-yl]-8-chloro-6-fluoro-1-[(1R,2S)-2-fluorocyclopropyl]-4-oxoquinoline-3-carboxylic acid
CAS:
127254-10-8
MF:
C19H18ClF2N3O3
Structure:
Chemical Name:
Sitagliptin Carbamoyl -D-Glucuronide
CAS:
940002-59-5
MF:
C23H23F6N5O9
Structure:
Chemical Name:
5-Hydroxy Desloratadine
CAS:
117811-12-8
MF:
C19H19ClN2O
Structure:
Chemical Name:
D-Streptamine, o-3-amino-3-deoxy-alpha-D-glucopyranosyl-(1-6)-o-(6-amino-6-deoxy-alpha-D-glucopyranosyl-(1-4))-N(sup 3)-(4-amino-2-hydroxybutyryl)-2-deoxy-
CAS:
50725-24-1
MF:
C22H43N5O13
Structure:
Chemical Name:
Acetamide, N-(4-hydroxyphenyl)-N-nitroso-
CAS:
146897-60-1
MF:
C8H8N2O3
Chemical Name:
Ruxolitinib Impurity 1
Chemical Name:
Oxacillin sodium EP impurity J
Chemical Name:
Piperacillin Sodium EP Impurity P
Chemical Name:
(S)-N-(4-((3-chloro-4-fluorophenyl)amino)-7-((tetrahydrofuran-3-yl)oxy)quinazolin-6-yl)-4-(dimethylamino)butanamide
Chemical Name:
Ertapenem Impurity B(USP)
Structure:
Chemical Name:
INDEX NAME NOT YET ASSIGNED
CAS:
2458312-06-4
MF:
C27H30N2O6
Structure:
Chemical Name:
15(R)-17-PHENYL TRINOR PROSTAGLANDIN F2ALPHA
CAS:
41639-71-8
MF:
C23H32O5
Chemical Name:
(5R,6S)-6-((R)-1-hydroxyethyl)-3-((R)-tetrahydrofuran-2-yl)-4-thia-1-azabicyclo[3.2.0]hept-2-en-7-one
Chemical Name:
Anastrozole Impurity 13
Chemical Name:
4,4',6-trioxo-4,4',5,6,7,7'-hexahydro-1H,1'H-[5,6'-bipyrrolo[2,3-d]pyrimidine]-5,5'-diyl)bis(ethane-2,1-diyl))bis(benzoyl))bis(azanediyl))dipentanedioic acid
Chemical Name:
Cefotiam impurity 07
Structure:
Chemical Name:
benzo-1,3-dioxol-5-ol acetate
CAS:
326-58-9
MF:
C9H8O4
Structure:
Chemical Name:
2-((4R,6S)-6-(chloromethyl)-2,2-dimethyl- 1,3-dioxan-4-yl)acetic acid
CAS:
775571-58-9
MF:
C9H15ClO4
Chemical Name:
Cefradine Impurity L
Structure:
Chemical Name:
(8beta)-10methoxy-6-dimethylergoline-8-methanol-5-bromo-3-pyridinecarboxylate(ester)
CAS:
35264-46-1
MF:
C23H24BrN3O3
Chemical Name:
Cephalexin Open-Ring Impurity
Chemical Name:
Urapidil Impurity 18
Chemical Name:
Flomoxef Impurity IV
Chemical Name:
Pitavastatin Impurity 54 Complete Set
Chemical Name:
Cetrorelix Impurity 15
Chemical Name:
Brivaracetam Impurity 46
Chemical Name:
Atracurium Impurity H Complete Set
Chemical Name:
Peramivir Intermediate Impurity 38
Chemical Name:
Peramivir Guanidine Acetyl Positional Heterogeneous Impurities
Chemical Name:
Ticagrelor impurity P drops
Chemical Name:
3-[4-(2-isopropoxyethoxymethyl)phenoxy]-2-(isopropylamino)propan-1-ol
Chemical Name:
Pemetrexed Disodium Impurity 31-40
Chemical Name:
Paclitaxel EP impurity drops
Chemical Name:
Ticagrelor impurity PDD
Chemical Name:
RICE BRAN OIL
CAS:
68553-81-1
Structure:
Chemical Name:
3-Azetidineacetonitrile, 1-(ethylsulfonyl)-3-[4-(1H-pyrazol-4-yl)-7H-pyrrolo[2,3-d]pyrimidin-7-yl]-
CAS:
2402776-83-2
MF:
C16H17N7O2S
Chemical Name:
Iohexol ImpuritiesE
Structure:
Chemical Name:
TERT-BUTYL (R)-6-CHLORO-5-HYDROXY-3-OXOHEXANOATE
CAS:
404958-08-3
MF:
C10H17ClO4
Chemical Name:
2-(3-(4-(4-(1-(3-(cyanomethyl)-1-(ethylsulfonyl)azetidin-3-yl)-1H-pyrazol-4-yl)-7H-pyrrolo[2,3-d]pyrimidin-2-yl)-1H-pyrazol-1-yl)-1-(ethylsulfonyl)azetidin-3-yl)acetonitrile
Chemical Name:
8-chloro-11-(1-((5-methylpyridin-3-yl)methyl)piperidin-4-yl)-11H-benzo[5,6]cyclohepta[1,2-b]pyridine
Chemical Name:
Bumetanide Photodegradable Impurity 16
Chemical Name:
Roxadustat Impurity 17
Chemical Name:
Perospirone Impurity 20
CAS:
1002359-81-0
Chemical Name:
Dolutegravir Impurity 19
Chemical Name:
Cephalexin Impurity I
Chemical Name:
Fondaparinux sodium impurity 6
Chemical Name:
Fondaparinux sodium impurity 2
Chemical Name:
Oxacillin sodium Impurity I
Chemical Name:
Mixture of Cefoxitin Impurity E&F
Chemical Name:
Revefenacin Impurity 22
Chemical Name:
Lasmiditan Impurity 7
Chemical Name:
Febuxostat impurity BAC
Structure:
Chemical Name:
4-(3,4-DICHLOROPHENYL)-1,2,3,4-TETRAHYDRO-1-NAPHTHALENOL
CAS:
866018-46-4
MF:
C16H14Cl2O
Chemical Name:
Bimatoprost Impurity 17
Chemical Name:
Bumetanide Impurity 10
Chemical Name:
Cefoxitin EP Impurity E (R-methoxy cefoxitin)
Structure:
Chemical Name:
4(1H)-Pyrimidinone, 5-amino-6-chloro-2-(propylthio)-
CAS:
2512210-21-6
MF:
C7H10ClN3OS
Structure:
Chemical Name:
Carbamic acid, N-[(1S)-1-methyl-2-oxo-2-[3-(phenylmethoxy)phenyl]ethyl]-, phenylmethyl ester
CAS:
2151127-61-4
MF:
C24H23NO4
Structure:
Chemical Name:
1-(chloromethyl)-4-(dichloromethyl)benzene
CAS:
7398-44-9
MF:
C8H7Cl3
Structure:
Chemical Name:
4,4'-(propane-1,3-diyl)bismorpholine
CAS:
48152-09-6
MF:
C11H22N2O2
Structure:
Chemical Name:
decyl D-glucoside
CAS:
54549-25-6
MF:
C16H32O6
Chemical Name:
3-(((2R,3S)-2-((R)-1-(3,5-bis(trifluoromethyl)phenyl)ethoxy)-3-(3-fluorophenyl)morpholino)methyl)-1H-1,2,4-triazol-5(4H)-one
Structure:
Chemical Name:
1-benzyl-4-phenylpiperidin-4-ol
CAS:
63843-83-4
MF:
C18H21NO
Structure:
Chemical Name:
[(±)-(4-amino-2-hydroxy-4-oxobutyl)trimethylammonium] chloride
CAS:
5261-99-4
MF:
C7H18ClN2O2+
Structure:
Chemical Name:
(S,R)-Palonosetron N-Oxide
MF:
C19H24N2O2
Structure:
Chemical Name:
17,21-dihydroxy-16beta-methylpregna-1,4,9(11)-triene-3,20-dione
CAS:
13504-15-9
MF:
C22H28O4
Structure:
Chemical Name:
Sulfamide, N-[6-[2-[(5-bromo-2-pyrimidinyl)oxy]ethoxy]-5-phenyl-4-pyrimidinyl]-N'-propyl-
CAS:
2300968-87-8
MF:
C19H21BrN6O4S
Structure:
Chemical Name:
Benzeneacetonitrile, 4-(4-chloro-1-oxobutyl)-α,α-dimethyl-
CAS:
169032-17-1
MF:
C14H16ClNO
Chemical Name:
Oseltamivir Impurity 103
Chemical Name:
Oseltamivir Impurity 101
Chemical Name:
Oseltamivir Impurity 90
Chemical Name:
Oseltamivir Impurity 79
Chemical Name:
Oseltamivir Impurity 73
Chemical Name:
Oseltamivir Impurity 69
Structure:
Chemical Name:
10-methoxy-6-methylergoline-8beta-methanol
CAS:
35121-60-9
MF:
C17H22N2O2
Structure:
Chemical Name:
INDEX NAME NOT YET ASSIGNED
CAS:
2514957-39-0
MF:
C16H16FN3O4
Chemical Name:
Sitagliptin EP Impurity 4
Structure:
Chemical Name:
1-[3,5-bis(phenylmethoxy)phenyl]-2-bromoethan-1-one
CAS:
28924-18-7
MF:
C22H19BrO3
Structure:
Chemical Name:
Benzenesulfonic acid, 4-[2-(2-chloro-4-hydroxyphenyl)hydrazinyl]-
CAS:
2174956-62-6
MF:
C12H11ClN2O4S
Chemical Name:
octahydro-1H,8H-dipyrazolo[1,2-a:1',2'-e][1,2,5,6]tetrazocine
Chemical Name:
Bimatoprost Impurity S
Structure:
Chemical Name:
BIS(2,6-DIPHENYLPHENOXY)NIOBIUM(V) CHLOR
CAS:
699012-35-6
MF:
C42H32Cl3NbO2
Chemical Name:
Brivaracetam Impurity 62
Chemical Name:
Lumateperone Impurity 4
Chemical Name:
SugammadexImpurity021
Chemical Name:
Pabocillin Impurity 28
Chemical Name:
Cefmetazole Sodium Impurity C
Chemical Name:
Ceftriaxone Sodium Oxide Impurity
Chemical Name:
2-[4-(Azidomethyl)phenyl]benzamide
Structure:
Chemical Name:
1H-Benzimidazole-7-carboxylic acid, 1-[[2'-[4,5-dihydro-4-[(5-methyl-2-oxo-1,3-dioxol-4-yl)methyl]-5-oxo-1,2,4-oxadiazol-3-yl][1,1'-biphenyl]-4-yl]methyl]-2-ethoxy-
CAS:
1985638-55-8
MF:
C30H24N4O8
Structure:
Chemical Name:
2H-1,4-Benzoxazin-3(4H)-one, 8-[(1R)-2-bromo-1-hydroxyethyl]-6-(phenylmethoxy)-
CAS:
2248125-51-9
MF:
C17H16BrNO4
Structure:
Chemical Name:
Morpholine, 4-[4-(1,1-dimethylethoxy)-1,2,5-thiadiazol-3-yl]-
CAS:
158636-99-8
MF:
C10H17N3O2S
Chemical Name:
Pemetrexed disodium Impurity 30
Chemical Name:
(S)-4,6,7,11-tetrahydroxy-9-(2-hydroxyacetyl)-7,8-dihydrotetracene-5,12-dione
Chemical Name:
Ruxolitinib ImpurityABCDEFGHJKL
Chemical Name:
Avatrombopag Impurity 76
Chemical Name:
Rosuvastatin Impurity 153
Chemical Name:
Rosuvastatin Impurity 138
Chemical Name:
Rosuvastatin Impurity 127