2022 Good Quality Cas No.29388-33-8 - Isorhamnetin-3-O-β-D-glucopyranoside CAS No.5041-82-7 – Yongjian
2022 Good Quality Cas No.29388-33-8 - Isorhamnetin-3-O-β-D-glucopyranoside CAS No.5041-82-7 – Yongjian Detail:
Physicochemical Properties Of Isorhamnetin-3-O-Glucoside
CAS No.: 5041-82-7
Molecular formula: c22h22o12
Molecular weight: 478.4029
Density: 1.75g/cm3
EINECS No.: 207-545-5
Melting point: 155-160 º C
PSA: 199.51000
LogP: 1.71
Boiling point: 834.4 ° C at 760 mmHg
Flash point: 291.3 ° C
Refractive index: 1.750
Steam pressure: 1.59e-29mmhg at 25 ° C
Specification: 98%
Chinese Alias: Isorhamnetin-3-o-beta-d-glucopyranoside
Physical and chemical properties
It is hygroscopic amorphous Tan powder (90% is off white powder)[ α] 16D-12.8。 (C = 4.6, methanol), tetraacetate is colorless acicular crystal, melting point: 196 ℃. Paeoniflorin is stable in acidic environment (pH 2 ~ 6) and unstable in alkaline environment.
English Alias
4H-1-benzopyran-4-one, 3-(beta-D-glucopyranosyloxy)-5,7-dihydroxy-2-(4-hydroxy-3-methoxyphenyl)-; 5,7-Dihydroxy-2-(4-hydroxy-3-methoxyphenyl)-3-{[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl]oxy}-4H-chromen-4-on; 5,7-Dihydroxy-2-(4-hydroxy-3-methoxyphenyl)-3-{[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl]oxy}-4H-chromen-4-one; 5,7-Dihydroxy-2-(4-hydroxy-3-méthoxyphényl)-3-{[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxyméthyl)tétrahydro-2H-pyran-2-yl]oxy}-4H-chromén-4-one; 5,7-Dihydroxy-2-(4-hydroxy-3-methoxyphenyl)-4-oxo-4H-chromen-3-yl b-D-glucopyranoside; 5,7-Dihydroxy-2-(4-hydroxy-3-methoxyphenyl)-4-oxo-4H-chromen-3-yl beta-D-glucopyranoside; 5,7-Dihydroxy-2-(4-hydroxy-3-methoxyphenyl)-4-oxo-4H-chromen-3-yl-beta-D-glucopyranoside; bêta-D-Glucopyranoside de 5,7-dihydroxy-2-(4-hydroxy-3-méthoxyphényl)-4-oxo-4H-chromén-3-yle; ISORHAMNETIN-3-GLUCOSIDE
Product Quality Control
1.Our company has obtained CNAS laboratory qualification
2.Our company has nuclear magnetic resonance (Bruker 40OMHZ) spectrometer, mass spectrometer (water SQD), analytical HPLC (equipped with UV detector, PDA detector, ESLD detector) and other analytical instruments to ensure product quality.
3.Our company keeps close contact with scientific research institutes such as Shanghai Institute for drug control, Nanjing public service platform for biomedicine and Shanghai Institute of pharmaceutical industry. The national fine chemicals quality inspection center is less than 100m away from our company and can provide a full set of third-party testing services to ensure the quality of the company’s products.
Solution
1. If the purchaser has any objection before receiving the product and acceptance, it can put forward it before passing the acceptance.
2. When the purchaser feeds back abnormal quality problems in any way (including telephone, fax, e-mail, etc.), we will respond within 4 hours, give preliminary solutions within 12 hours, and give complete solutions and corresponding preventive measures within 24 hours.
3. If the acceptance shows that the quality, quantity, specification or performance of the products do not meet the requirements specified by the purchaser, we are willing to return, exchange or replenish unconditionally within 8 days from the date of receiving the written notice from the purchaser.
4. Our company keeps the production records and testing records of all products for 5 years for customers to review at any time.
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Our eternal pursuits are the attitude of "regard the market, regard the custom, regard the science" and the theory of "quality the basic, trust the first and management the advanced" for 2022 Good Quality Cas No.29388-33-8 - Isorhamnetin-3-O-β-D-glucopyranoside CAS No.5041-82-7 – Yongjian , The product will supply to all over the world, such as: Romania, Korea, Cyprus, We adhere to client 1st, top quality 1st, continuous improvement, mutual advantage and win-win principles. When cooperation together with the customer, we provide shoppers with the highest high-quality of service. Established good business relations using the Zimbabwe buyer inside the business, we've got established own brand and reputation. At the identical time, wholeheartedly welcome new and old prospects to our company to go to and negotiate small business.
By ROGER Rivkin from Tunisia - 2018.07.12 12:19
This is a honest and trustworthy company, technology and equipment are very advanced and the prodduct is very adequate, there is no worry in the suppliment.
By Pag from Swansea - 2017.06.16 18:23
