Standard
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.
Click on the specific product, view the latest prices of the products, information, serving information
- Structure:
- Chemical Name:
- (3RS)-1,3-Bis[4-(2-Methylpropyl) phenyl]butan-1-one
- MF:
- C24H32O
- Structure:
- Chemical Name:
- 2-[4-(2-Methylpropyl)phenyl] ethanol
- CAS:
- 2143535-25-3
- MF:
- C24H32O
- Structure:
- Chemical Name:
- 1-cyclopropyl-6-fluoro-8-hydroxy-4-oxo-7-((4aR,7aR)-tetrahydro-1H-pyrrolo[3,4-b]pyridin-6(2H,7H,7aH)-yl)-1,4-dihydroquinoline-3-carboxylic acid hydrobroMide
- CAS:
- 1292904-74-5
- MF:
- C20H23BrFN3O4
- Chemical Name:
- IMp. B (EP)
- Structure:
- Chemical Name:
- IMp. K (EP)
- CAS:
- 40610-41-1
- MF:
- C13H17NO3
- Structure:
- Chemical Name:
- (Z)-Methyl 3-((2'-(N'-hydroxycarbaMiMidoyl)biphenyl-4-yl)Methyl)-2-oxo-2,3-dihydro-1H-benzo[d]iMidazole-4-carboxylate
- CAS:
- 1499167-72-4
- MF:
- C23H20N4O4
- Structure:
- Chemical Name:
- 4-(4-fluorobenzoyl)-3-(hydroxyMethyl)benzonitrile
- CAS:
- 260371-16-2
- MF:
- C15H10FNO2
- Structure:
- Chemical Name:
- ATV-FX1 sodiuM salt
- CAS:
- 1315629-79-8
- MF:
- C33H34FN2NaO7
- Structure:
- Chemical Name:
- Montelukast Impurity H
- CAS:
- 851755-56-1
- MF:
- C34H32ClNO4S
- Structure:
- Chemical Name:
- SalMeterol EP IMpurity F
- CAS:
- 1391054-40-2
- MF:
- C25H37NO3
- Structure:
- Chemical Name:
- [6-Hydroxy-2-(4-hydroxyphenyl)benzo[b]thiophen-7-yl]
- CAS:
- 1391054-73-1
- MF:
- C28H27NO4S
- Structure:
- Chemical Name:
- (R)-α-Methyl-N-[3-[3-(trifluoroMethyl)phenyl]Methyl]-1-naphthaleneMethaneaMine Hydrochloride
- CAS:
- 1229225-42-6
- MF:
- C20H19ClF3N
- Structure:
- Chemical Name:
- 3(S)-Hydroperoxy Simvastatin
- CAS:
- 1092716-44-3
- MF:
- C25H38O7
- Structure:
- Chemical Name:
- 2(RS)-4-Methyl-1-(3-Methylpyridin-2-yl)-2-phenylpiperazine
- CAS:
- 191546-94-8
- MF:
- C17H21N3
- Structure:
- Chemical Name:
- Iso Ganciclovir
- CAS:
- 86357-09-7
- MF:
- C9H13N5O4
- Structure:
- Chemical Name:
- (1S,3R)-1-Benzo[1,3]dioxol-5-yl-2-(2-chloro-acetyl)-2,3,4,9-tetrahydro-1H-b-carboline-3-carboxylic Acid Methyl Ester
- CAS:
- 629652-40-0
- MF:
- C22H19ClN2O5
- Structure:
- Chemical Name:
- 5-Chloro-N1-Methylbenzene-1,2-diaMine
- CAS:
- 84859-27-8
- MF:
- C7H9ClN2
- Structure:
- Chemical Name:
- (1'S,3'S,4'S)-Entecavir IsoMer
- CAS:
- 1367369-80-9
- MF:
- C12H15N5O3
- Structure:
- Chemical Name:
- N-Deshydroxyethyl Dasatinib
- CAS:
- 910297-51-7
- MF:
- C20H22ClN7OS
- Structure:
- Chemical Name:
- N-Desethyl Sunitinib
- CAS:
- 356068-97-8
- MF:
- C20H23FN4O2
- Structure:
- Chemical Name:
- 6-(4-{2-[5-(tert-Butyl-dimethyl-silanyloxy)-2-methylene-cyclohexylidene]-ethylidene}-7a-methyl-octahydro-inden-1-yl)-2-methyl-heptan-2-ol
- CAS:
- 140710-90-3
- MF:
- C33H58O2Si
- Structure:
- Chemical Name:
- 3-Hydroxy loratadine
- CAS:
- 183483-15-0
- MF:
- C22H23ClN2O3
- Structure:
- Chemical Name:
- Dehydro Lacidipine
- CAS:
- 130996-24-6
- MF:
- C26H31NO6
- Structure:
- Chemical Name:
- Granisetron Impurity F
- CAS:
- 1364914-39-5
- MF:
- C18H24N4O
- Structure:
- Chemical Name:
- 2-chloro-N-(4-ethoxyphenyl)-4-nitrobenzamide
- CAS:
- 328258-90-8
- MF:
- C15H13ClN2O4
- Structure:
- Chemical Name:
- 6-Hydroxy Nicorandil
- CAS:
- 113743-17-2
- MF:
- C8H9N3O5
- Structure:
- Chemical Name:
- trans-Itraconazole
- CAS:
- 252964-65-1
- MF:
- C35H38Cl2N8O4
- Structure:
- Chemical Name:
- N-(2-Pyridyl)oxamic Acid
- CAS:
- 13120-39-3
- MF:
- C7H6N2O3
- Structure:
- Chemical Name:
- (trans)-4-Propyl-1-methyl-L-proline
- CAS:
- 13380-36-4
- MF:
- C9H17NO2
- Structure:
- Chemical Name:
- N-Nordextromethorphan
- CAS:
- 1531-23-3
- MF:
- C17H23NO
- Structure:
- Chemical Name:
- (S,S,R,R)-Orlistat
- CAS:
- 111466-62-7
- MF:
- C29H53NO5
- Structure:
- Chemical Name:
- 17β-Carboxy-17-desoxy Dexamethasone
- CAS:
- 75262-69-0
- MF:
- C21H27FO4
- Structure:
- Chemical Name:
- 1-(dimethoxymethyl)-3-methoxybenzene
- CAS:
- 59276-28-7
- MF:
- C10H14O3
- Structure:
- Chemical Name:
- Benazepril impurity A
- MF:
- C24H28N2O5
- Structure:
- Chemical Name:
- 3S,4R-4-[phenyl-1-methylpiperidinyl] methanol
- CAS:
- 176022-03-0
- MF:
- C13H19NO
- Structure:
- Chemical Name:
- Allopurinol Related CoMpound F
- CAS:
- 321571-07-7
- MF:
- C12H14N4O4
- Structure:
- Chemical Name:
- N-[(n-butylaMino)carbonyl]-4-[(3-Methylphenyl)aMino]-3-pyridinesulfonaMide
- CAS:
- 160972-33-8
- MF:
- C17H22N4O3S
- Structure:
- Chemical Name:
- (R)-N-DeMethyl Dapoxetine
- CAS:
- 1202160-36-8
- MF:
- C20H21NO
- Structure:
- Chemical Name:
- 14,15-Dehydro Budesonide
- CAS:
- 131918-64-4
- MF:
- C25H32O6
- Structure:
- Chemical Name:
- 2-(BenzylMethylaMino)-3',4'-dihydroxyacetophenone
- CAS:
- 36467-25-1
- MF:
- C16H17NO3
- Structure:
- Chemical Name:
- 2'-O-(5'-Deoxy-β-D-ribofuranosyl) Capecitabine
- CAS:
- 1262133-66-3
- MF:
- C20H30FN3O9
- Structure:
- Chemical Name:
- 4-Defluoro-4-hydroxy Gefitinib
- CAS:
- 847949-50-2
- MF:
- C22H25ClN4O4
- Structure:
- Chemical Name:
- Desethyl Sildenafil
- CAS:
- 139755-91-2
- MF:
- C20H26N6O4S
- Structure:
- Chemical Name:
- N-Desisopropyl-N-forMyl Bisoprolol
- CAS:
- 1346602-59-2
- MF:
- C16H25NO5
- Structure:
- Chemical Name:
- N-DesMethyl Olopatadine
- CAS:
- 113835-92-0
- MF:
- C20H21NO3
- Structure:
- Chemical Name:
- 10-Keto DextroMethorphan
- CAS:
- 57969-05-8
- MF:
- C18H23NO2
- Structure:
- Chemical Name:
- 2'-[(1H-Tetrazol-5-yl)biphenyl-4-yl]Methanol
- CAS:
- 160514-13-6
- MF:
- C14H12N4O
- Structure:
- Chemical Name:
- ent-Paroxol
- CAS:
- 389573-45-9
- MF:
- C13H18FNO
- Structure:
- Chemical Name:
- Ethyl α-Thioglucopyranoside
- CAS:
- 13533-58-9
- MF:
- C8H16O5S
- Structure:
- Chemical Name:
- Febuxostat Acyl-β-D-glucuronide
- CAS:
- 1351692-92-6
- MF:
- C22H24N2O9S
- Structure:
- Chemical Name:
- Keto Bisoprolol
- CAS:
- 864544-37-6
- MF:
- C18H29NO5
- Structure:
- Chemical Name:
- Olopatadine Carbaldehyde DISCONTINUED
- CAS:
- 1376615-97-2
- MF:
- C21H23NO2
- Structure:
- Chemical Name:
- 5-Chloro-1-methyl-4-nitroimidazole
- MF:
- C4H4ClN3O2
- Chemical Name:
- Nisoldipine Related Compound II
- Structure:
- Chemical Name:
- Solifenacin N-Oxide
- CAS:
- 180272-28-0
- MF:
- C23H26N2O3
- Structure:
- Chemical Name:
- ACETAMINOPHEN IMPURITY B
- CAS:
- 1693-37-4
- MF:
- C9H11NO2
- Structure:
- Chemical Name:
- 2-chloro-N-(3-chloro-2-methylphenyl)nicotinamide
- CAS:
- 57841-61-9
- MF:
- C13H10Cl2N2O
- Structure:
- Chemical Name:
- (R)-3-Amino-3-phenylpropionic acid
- CAS:
- 13921-90-9
- MF:
- C9H11NO2
- Structure:
- Chemical Name:
- 4-(2-Ethoxy benzamido)-1-methyl-3-n-propyl pyrazole-5-carboxamide.
- CAS:
- 139756-03-9
- MF:
- C17H22N4O3
- Structure:
- Chemical Name:
- N-Hydroxy Riluzole
- CAS:
- 179070-90-7
- MF:
- C8H5F3N2O2S
- Structure:
- Chemical Name:
- 2-piperazine-4-amino-6,7-dimethoxyquinazoline Hydrochloride
- CAS:
- 70843-11-7
- MF:
- C14H20ClN5O2
- Structure:
- Chemical Name:
- 3-[(E)-Ethylidene]-2-pyrrolidone
- CAS:
- 930-94-9
- Structure:
- Chemical Name:
- 1-(3-Aminopropyl)aziridine
- CAS:
- 1072-65-7
- MF:
- C5H12N2
- Structure:
- Chemical Name:
- 3,5-Di(4-pyridinyl)-1H-1,2,4-triazol-1-amine
- CAS:
- 4923-06-2
- MF:
- C12H10N6
- Structure:
- Chemical Name:
- (1α,2β,4β,5α)-9-Methyl-3-oxa-9-azatricyclo[3.3.1.02,4]nonan-7α-ol
- CAS:
- 498-46-4
- MF:
- C8H13NO2
- Structure:
- Chemical Name:
- Ambroxol EP Impurity B
- CAS:
- 18683-95-9
- MF:
- C14H18Br2N2O
- Structure:
- Chemical Name:
- 16-Hydroxyerythromycin
- CAS:
- 82230-93-1
- MF:
- C37H67NO14
- Structure:
- Chemical Name:
- BUPROPION MORPHOLINOL
- CAS:
- 357399-43-0
- MF:
- C13H18ClNO2
- Structure:
- Chemical Name:
- 4-[1-(4-Chlorophenyl)-1-phenylethoxy]-1-methylhexahydro-1H-azepine
- CAS:
- 61771-18-4
- MF:
- C21H26ClNO
- Structure:
- Chemical Name:
- 1,4-Dihydro-2,6-dimethyl-4-(3-nitrophenyl)pyridine-3,5-dicarboxylic acid 3-isopropyl 5-(2-hydroxyethyl) ester
- CAS:
- 82219-47-4
- MF:
- C20H24N2O7
- Structure:
- Chemical Name:
- 3-[(3-TRIFLUOROMETHYL)PHENYL]-1-PROPENE
- CAS:
- 1813-96-3
- MF:
- C10H9F3
- Structure:
- Chemical Name:
- (AS)-A-(2-CHLOROPHENYL)-2,3,6,7-TETRAHYDRO-2-OXO-THIENO[3,2-C]PYRIDINE-5(4H)-ACETIC ACID METHYL ESTER
- CAS:
- 527687-26-9
- MF:
- C16H16ClNO3S
- Structure:
- Chemical Name:
- 1-(P-METHOXYPHENYL)-1-BUTEN-3-ONE
- CAS:
- 943-88-4
- MF:
- C11H12O2
- Structure:
- Chemical Name:
- 1-(P-METHOXYPHENYL)-1-BUTEN-3-ONE
- CAS:
- 943-88-4
- MF:
- C11H12O2
- Structure:
- Chemical Name:
- 1-(P-METHOXYPHENYL)-1-BUTEN-3-ONE
- CAS:
- 943-88-4
- MF:
- C11H12O2
- Structure:
- Chemical Name:
- ANAGRELIDE IMPURITY 5
- CAS:
- 444904-63-6
- MF:
- C8H7Cl2N3
- Structure:
- Chemical Name:
- 2-[2-(2-AMINO-9H-PURIN-9-YL)ETHYL]-1,3-PROPANEDIOL
- CAS:
- 104227-86-3
- MF:
- C10H15N5O2
- Structure:
- Chemical Name:
- 1,4,8,11-Tetrakis[(4-methylphenyl)sulfonyl]-1,4,8,11-tetraazacyclotetradecane
- CAS:
- 71089-74-2
- MF:
- C38H48N4O8S4
- Structure:
- Chemical Name:
- 3-Cyano-4-isobutoxybenzoic acid
- CAS:
- 528607-60-5
- MF:
- C12H13NO3
- Structure:
- Chemical Name:
- REF DUPL: trans-2-Hydroxymethyl-5-(cytosin-1-yl)-1,3-oxathiolane
- CAS:
- 139757-68-9
- MF:
- C8H11N3O3S
- Structure:
- Chemical Name:
- 1-Propanol,3-[(1,1-dimethylethyl)amino]-2-[[4-(4-morpholinyl)-1,2,5-thiadiazol-3-yl]-oxy]-
- CAS:
- 59697-06-2
- MF:
- C13H24N4O3S
- Structure:
- Chemical Name:
- Anagrelide impurity 4
- CAS:
- 1092352-99-2
- MF:
- C10H6Cl3N3O
- Structure:
- Chemical Name:
- rac Cetirizine N-Oxide > 70% by HPLC (Mixture of Diastereomers)
- CAS:
- 1076199-80-8
- MF:
- C21H25ClN2O4
- Structure:
- Chemical Name:
- (S)-N-Didemethyl Dapoxetine
- CAS:
- 147199-40-4
- MF:
- C19H19NO
- Structure:
- Chemical Name:
- Hydroxy Flunarizine
- CAS:
- 87166-81-2
- MF:
- C26H26F2N2O
- Structure:
- Chemical Name:
- 1-METHYL-4-NITRO-3-PROPYL-1H-PYRAZOLE-5-CARBOXYLIC ACID
- CAS:
- 139756-00-6
- MF:
- C8H11N3O4
- Chemical Name:
- EMpagliflozin iMpurity 9
- Structure:
- Chemical Name:
- EMpagliflozin iMpurity 14
- CAS:
- 2137418-13-2
- MF:
- C23H27ClO8
- Structure:
- Chemical Name:
- 570403-04-2
- CAS:
- 570403-04-2
- MF:
- C23H24Cl3N5OS2
- Chemical Name:
- ibrutinib iMpurity A
- Chemical Name:
- Sunitinib iMpurity E
- Structure:
- Chemical Name:
- Rosuvastatin EP impurity H
- CAS:
- 1335110-44-5
- MF:
- C22H28FN3O6S
- Chemical Name:
- Saxagliptin Impurity 4 (Deoxy Saxagliptin)
- Structure:
- Chemical Name:
- Betamethasone EP Impurity D
- CAS:
- 52619-05-3
- MF:
- C25H33FO7
- Structure:
- Chemical Name:
- Dihydropenicillin F Potassium Salt
- CAS:
- 31447-86-6
- MF:
- C14H23KN2O4S
- Structure:
- Chemical Name:
- Etoricoxib Impurity 7
- CAS:
- 646459-39-4
- MF:
- C20H21N3O2S
- Structure:
- Chemical Name:
- Mupirocin Impurity D
- MF:
- C26H44O9
- Structure:
- Chemical Name:
- Pazopanib Related Compound 2
- CAS:
- 1226500-02-2
- MF:
- C26H23ClN10
- Structure:
- Chemical Name:
- Phenylephrine EP Impurity D
- CAS:
- 1367567-95-0
- MF:
- C16H19NO2
- Structure:
- Chemical Name:
- Verapamil Impurity O
- CAS:
- 959011-16-6
- MF:
- C27H38N2O4