Dayangchem’s R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. DayangChem can provide different quantiti
Cas:98-79-3
Min.Order:100 Gram
Negotiable
Type:Lab/Research institutions
inquirySichuan Tongsheng is the most strongest manufacturer and exporter of amino acids and their derivatives in China, we have the best quality and price. Guarantee high quality, competive price and reliable service. We fully compliance with ISO9001:2008,
Cas:98-79-3
Min.Order:1 Kilogram
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Type:Manufacturers
inquiry1.Doing amino acid for 13 years .The stable process and advanced technology can provide high quality product 2.we can offer you very Competitve price 3.Good after-sale service Test Item Specification
Appearance:white to light yellow crystal powder Package:25kg/drum
Why is SINOWAY: 1) Specialized in pharmaceutical and healthcare industrial for 34 years. 2) ISO 9001:2015 & SGS audited supplier . 3) Accept various payment terms : T.T 30-60 days. 4) We have warehouse in USA with quickly shipment . 5) We c
Cas:98-79-3
Min.Order:25 Kilogram
Negotiable
Type:Trading Company
inquiryWelcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our
Cas:98-79-3
Min.Order:1 Kilogram
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Type:Manufacturers
inquiryItems Standard Result Appearance White to off-white powder White powder Specific rotation -1
Cas:98-79-3
Min.Order:1 Gram
FOB Price: $100.0 / 500.0
Type:Manufacturers
inquirySuperiority kono chem is a leading manufacturer and supplier of chemicals in China. We develop ,produce and distribute high quality pharmaceuticals, intermediates, special chemicals and other fine chemicals. We could give you: 1.Best
Cas:98-79-3
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inquiryHebei yanxi chemical co., LTD is a professional research, development and production 2-phenylacetamide enterprise backbone members by local well-known entrepreneurs and professional senior engineers in the party's "low carbon environ
Cas:98-79-3
Min.Order:100 Gram
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inquiryXi’an Quanao Biotech Co., Ltd. with 18 years experience in plant extract filed. Product grade: Medicine, Health care product, Cosmetics, Food, Beverage, Feed. Hot selling market: Europe, North America, South America, Middle East, Asia Pacifi
Cas:98-79-3
Min.Order:1 Kilogram
FOB Price: $29.0 / 39.0
Type:Manufacturers
inquiryL-Pyroglutamic Acid CAS:98-79-3 Appearance Transparent fine crystal Content ≥99% Use Used in food, medicine, cosmetics and other industries Package 25 kg cardboard barrels HANGZHOU TH
The above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi
20-year experience in Phytochemicals Each product has passed very strict tests (NMR\MS\HPLC) Agents in 13 countries Certified by ISO 9001:2015 quality management system Leader Supplier of Botanical Reference Materials in China 3000 kinds of
We can provide GMP validation service that complies with SFDA, FDA, WHO and EU EMPA.Excellent registration team could help us easlily to register our products in different countries.If you and your customer are interested in some products or need C
Cas:98-79-3
Min.Order:1 Gram
Negotiable
Type:Manufacturers
inquiry1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s
Cas:98-79-3
Min.Order:1 Gram
FOB Price: $0.1
Type:Manufacturers
inquiryColorcom is a global leader in industrial chemical manufacturing and is continuously innovating and transforming to exceed client expectations and industry standards. Colorcom prides itself on superior customer and technical focus, while focusing on
Our main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block
Cas:98-79-3
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
inquiryName:L-pyroglutamic acid CAS:98-79-3 Grade:For chemical industry, scientific research and export Product Quality 12 years of chemical raw materials Mature operation of the industry System stability Data storage Security without vulnerability
Cas:98-79-3
Min.Order:25 Kilogram
FOB Price: $1.0 / 2.0
Type:Other
inquiryProduct Description Name L-Pyroglutamic acid CAS 98-79-3 Assay 99% Appearance
Cas:98-79-3
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryOur company was built in 2009 with an ISO certificate.In the past 5 years, we have grown up as a famous fine chemicals supplier in China and we had established stable business relationships with Samsung,LG,Merck,Thermo Fisher Scientific and so on.O
Cas:98-79-3
Min.Order:1 Gram
FOB Price: $1.0
Type:Lab/Research institutions
inquiryOur advantages: 1. All inquiries will be replied within 12 hours. 2. Dedication to quality, supply & service. 3. Strictly on selecting raw materials. 4. Reasonable & competitive price, fast lead time. 5. Sample is available for your eva
Cas:98-79-3
Min.Order:1 Kilogram
FOB Price: $9.0 / 99.0
Type:Trading Company
inquiryWITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et
Cas:98-79-3
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
inquiryOur Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We
Appearance:White to off-white powder Storage:2-8°C Package:25kg/drum Application:L-Pyroglutamic acid is used in the synthesis of: Nonproteinogenic amino acids such as (3S,4R)-3,4-dimethyl-L-pyroglutamic acid and (3S,4R)-3,4-dimethyl-L-glutamine. Ch
Cas:98-79-3
Min.Order:1 Kilogram
FOB Price: $1.0
Type:Lab/Research institutions
inquiry1. Guaranteed purity; 2. Large quantity in stock; 3. Largest manufacturer; 4. Best service after shipment with email; 5. High quality & competitive price; Appearance:Off-White crystalline powder Storage:Store in sealed contain
Cas:98-79-3
Min.Order:100 Gram
Negotiable
Type:Other
inquiry1.Prompt Goods; 2.Flexible payment terms; 3.Documents & Certificate support. Name: L-Pyroglutamic acid Molecular Structure: Formula: C5H7NO3 Molecular Weight : 129.11 Synonyms: (5s)-2-oxopyrrolidine-5-carboxylicacid;(s)-5-oxo-2-pyrrolidin
1.No Less 8 years exporting experience. Clients can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specialized
Cas:98-79-3
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryWe are the manufacturers and suppliers of API in China, and warehouse in Germany and USA of California, which can quickly and safely deliver to your address 1.High quality and competitive price. 2.Free sample for your evaluation. 3.Promptly delivery
Cas:98-79-3
Min.Order:10 Gram
FOB Price: $3.5
Type:Trading Company
inquiryPacking: According to customer requirements Delivery time: In stock or depands Port of shipment: Ningbo/Shanghai/Qingdao OEM/ODM:Welcome Sample:We can offer our existing samples at once Appearance:White crystal powder / Refer to COA Package:Ent
Cas:98-79-3
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
inquiryL-Pyroglutamic acid CAS: 98-79-3 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality organic interme
Cas:98-79-3
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryConditions | Yield |
---|---|
With water for 16h; Heating; | 95% |
In water for 16h; Heating; | 95% |
With 1,1'-carbonyldiimidazole In chloroform at 55℃; for 3h; Solvent; Concentration; | 76.8% |
L-N-t-butoxycarbonylpyroglutamic acid
L-Pyroglutamic acid
Conditions | Yield |
---|---|
With silica gel In dichloromethane for 0.0166667h; Irradiation; | 91% |
With tin(II) trifluoromethanesulfonate In dichloromethane at 20℃; for 2h; | 87% |
tert-butyl (S)-N-tert-butoxycarbonylpyroglutamate
L-Pyroglutamic acid
Conditions | Yield |
---|---|
With trifluoroacetic acid In dichloromethane for 0.333333h; Ambient temperature; | 90% |
Conditions | Yield |
---|---|
With triethylamine In water; N,N-dimethyl-formamide at 40℃; for 20h; | 88.3% |
(5S)-2,2-bis(trifluoromethyl)-1-aza-3-oxabicyclo[3.3.0]octan-4,8-dione
L-Pyroglutamic acid
Conditions | Yield |
---|---|
With water In isopropyl alcohol at 20℃; | 87% |
Conditions | Yield |
---|---|
at 175℃; under 3750.38 Torr; for 5h; Temperature; Pressure; Autoclave; Large scale; | A 15.9% B 83% |
Boc-Gln-OH
trifluoroacetic acid
A
L-glutamic acid
B
L-Pyroglutamic acid
Conditions | Yield |
---|---|
at 20℃; for 0.25h; | A 61% B 18% |
tert-butyl (4S,4'S,5'R)-4-amino-5-(3',4'-dimethyl-2'-oxo-5'-phenyl-1'-imidazolydinyl)-5-oxopentanoate
L-Pyroglutamic acid
Conditions | Yield |
---|---|
With water for 12h; Hydrolysis; cyclization; Heating; | 45% |
L-glutamic acid γ-benzyl ester
A
benzaldehyde
B
benzoic acid
C
L-Pyroglutamic acid
D
benzyl alcohol
Conditions | Yield |
---|---|
With sodium hydroxide; sodium tetrachloropalladate(II) In water Product distribution; Ambient temperature; initial pH:6.8; variation of initial pH and temperature; | A 37% B 4% C n/a D 24% |
H-Glu(OChp)-OH
L-Pyroglutamic acid
Conditions | Yield |
---|---|
With triethylamine In water; N,N-dimethyl-formamide at 40℃; for 20h; | 4.1% |
Conditions | Yield |
---|---|
With water |
Conditions | Yield |
---|---|
With ammonium hydroxide |
diethyl 2-aminopentanedioate
L-Pyroglutamic acid
Conditions | Yield |
---|---|
With water |
L-glutamic acid diethyl ester
L-Pyroglutamic acid
Conditions | Yield |
---|---|
With water |
Conditions | Yield |
---|---|
With palladium on activated charcoal; acetic acid Hydrogenation; |
Conditions | Yield |
---|---|
at 28℃; for 840h; pH=5.5 (acetate buffer), PhCH3 on surface; | |
With human blood serum at 24.84℃; |
(S)-2-Amino-pentanedioic acid 5-ethyl ester
A
ethanol
B
L-Pyroglutamic acid
Conditions | Yield |
---|---|
In water at 40℃; Rate constant; pH 7.6-10.4, μ=0.5 (KCl); |
histrelin
A
His-Trp-Ser-Tyr-(D-Nim-bzl-His)-Leu-Arg-Pro-NHEt
C
Ser-Tyr-(D-Nim-bzl-His)-Leu-Arg-Pro-NHEt
E
L-Pyroglutamic acid
Conditions | Yield |
---|---|
With water at 87℃; for 432h; Product distribution; degradation, var. reaction time, temperature and ph; |
N-Acetylpyroglutamic acid
A
N-Acetyl-D-pyroglutamic acid
B
L-Pyroglutamic acid
Conditions | Yield |
---|---|
With potassium hydroxide; potassium phosphate buffer; porcine kidney acylase I at 40℃; relative initial rate of hydrolysis, also with Aspergillus acylase I as a catalyst; |
Conditions | Yield |
---|---|
With water In acetonitrile at 40℃; Rate constant; pH 9.7-10.5, μ=0.5 (KCl); | |
With 2-(di(2-hydroxyethyl)amino)ethanesulfonic acid; lipase from Bacillus thermocatenulanatus In water at 40℃; pH=7.20; Enzyme kinetics; |
L-Pyroglutamic acid
Conditions | Yield |
---|---|
With Quinine |
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 67 percent / dimethylsulfoxide / 20 °C 2: 99 percent / SOCl2; DMF / CH2Cl2 / 20 °C 3: 87 percent / H2O / propan-2-ol / 20 °C View Scheme |
(S)-[2,2-bis(trifluoromethyl)-5-oxo-1,3-oxazolidin-4-yl]propionic acid
A
L-Pyroglutamic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 99 percent / SOCl2; DMF / CH2Cl2 / 20 °C 2: 87 percent / H2O / propan-2-ol / 20 °C View Scheme |
N-Boc-L-proline
L-Pyroglutamic acid
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: dicyclohexylcarbodiimide, 4-dimethylaminopyridine 2: 95 percent / RuO2 hydrate, 10percent aqueous NaIO4 / ethyl acetate / 2 h / Ambient temperature 3: 90 percent / CF3COOH / CH2Cl2 / 0.33 h / Ambient temperature View Scheme |
N-BOC-proline tert-butyl ester
L-Pyroglutamic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 95 percent / RuO2 hydrate, 10percent aqueous NaIO4 / ethyl acetate / 2 h / Ambient temperature 2: 90 percent / CF3COOH / CH2Cl2 / 0.33 h / Ambient temperature View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 75 percent / dicyclohexylcarbodiimide, 4-dimethylaminopyridine / tetrahydrofuran 2: 76 percent / H2, AcOH / Pd / methanol / 24 h 3: 4.1 percent / Et3N / dimethylformamide; H2O / 20 h / 40 °C View Scheme |
C26H48N6O15
A
5-O-(5-amino-5-deoxy-β-D-ribofuranosyl)-1-N-[(S)-4-amino-2-hydroxy-butanoyl]paromamine
B
L-Pyroglutamic acid
Conditions | Yield |
---|---|
BtrG enzyme In water at 20℃; for 24h; Product distribution / selectivity; HEPES buffer; Enzymatic reaction; |
diazomethane
L-Pyroglutamic acid
methyl (S)-pyroglutamate
Conditions | Yield |
---|---|
In diethyl ether | 100% |
With diethyl ether | |
In methanol; diethyl ether at 0℃; for 0.5h; |
Conditions | Yield |
---|---|
With thionyl chloride at 0 - 25℃; | 100% |
With methanesulfonic acid In chloroform; water Reflux; | 100% |
With Dowex-50W (X8-200) resin Inert atmosphere; Reflux; | 100% |
acetic acid tert-butyl ester
L-Pyroglutamic acid
L-t-butyl pyroglutamate
Conditions | Yield |
---|---|
With perchloric acid In water at 20℃; for 18h; | 100% |
Stage #1: acetic acid tert-butyl ester; L-Pyroglutamic acid With perchloric acid at 20℃; for 48h; Inert atmosphere; Stage #2: With perchloric acid for 48h; Inert atmosphere; | 90% |
With perchloric acid at 20℃; for 96h; Inert atmosphere; | 90% |
1,1,1,3,3,3-hexamethyl-disilazane
L-Pyroglutamic acid
L-trimethylsilyl pyroglutamate
Conditions | Yield |
---|---|
With saccharin for 2.5h; Heating; | 100% |
Conditions | Yield |
---|---|
With triethylamine In 1,2-dichloro-ethane at 60℃; for 15h; Temperature; Large scale; | 100% |
With triethylamine In acetone for 168h; Heating; | 85% |
With TEA In acetone | 85% |
2-methyl-1-buten-4-ol
L-Pyroglutamic acid
(5S)-2-pyrrolidone-5-carboxylic acid 3-methyl-3-butenyl ester
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 0 - 20℃; | 100% |
With dmap; dicyclohexyl-carbodiimide In dichloromethane |
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In toluene at 130℃; for 2h; Dean-Stark; | 100% |
With toluene-4-sulfonic acid In benzene for 2h; Heating; |
L-Pyroglutamic acid
pyroglutamoyl chloride
Conditions | Yield |
---|---|
Stage #1: L-Pyroglutamic acid With 1,1,1,3,3,3-hexamethyl-disilazane; saccharin for 2.5h; Heating / reflux; Stage #2: With oxalyl dichloride In dichloromethane at 20℃; Heating / reflux; | 100% |
p-toluenesulfonyl chloride
L-Pyroglutamic acid
(S)-toluene-4-sulfonic acid 5-oxo-pyrrolidin-2-ylmethyl ester
Conditions | Yield |
---|---|
Stage #1: L-Pyroglutamic acid With thionyl chloride In methanol at 20℃; for 4h; Stage #2: With sodium tetrahydroborate In ethanol at 20℃; for 15h; Stage #3: p-toluenesulfonyl chloride With dmap; triethylamine In dichloromethane at 20℃; for 16h; | 100% |
Conditions | Yield |
---|---|
In methanol; chloroform Molecular sieve; Reflux; | 100% |
Conditions | Yield |
---|---|
In methanol | 100% |
Conditions | Yield |
---|---|
With thionyl chloride at 0 - 20℃; | 99% |
With thionyl chloride at 0℃; for 15h; | 99% |
With thionyl chloride at -5 - 20℃; for 10h; | 98% |
Conditions | Yield |
---|---|
With ammonium peroxydisulfate; silver nitrate In water at 20℃; for 2h; Reagent/catalyst; Temperature; | 99% |
With iodosylbenzene In dichloromethane for 48h; Ambient temperature; | 27% |
allyl alcohol
L-Pyroglutamic acid
(S)-allyl 5-oxopyrrolidine-2-carboxylate
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane | 99% |
With thionyl chloride at 20℃; for 12h; | 85% |
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 0 - 5℃; Inert atmosphere; |
L-Pyroglutamic acid
Conditions | Yield |
---|---|
With triethylamine; HATU In N,N-dimethyl-formamide at 20℃; for 18h; | 99% |
tegaserod
L-Pyroglutamic acid
Conditions | Yield |
---|---|
In acetone at 25 - 55℃; for 20h; | 98.3% |
isopropyl alcohol
L-Pyroglutamic acid
(S)-isopropyl 5-oxopyrrolidine-2-carboxylate
Conditions | Yield |
---|---|
With thionyl chloride at 15℃; for 2h; | 98.1% |
With toluene-4-sulfonic acid for 6h; Haller-Bauer Reaction; 4 A molecular sieve; | 96% |
With toluene-4-sulfonic acid for 6h; Heating / reflux; | 96% |
(1S,2R,5S)-(+)-menthol
L-Pyroglutamic acid
(S)-[(1S,2R,5S)-2-isopropyl-5-methylcyclohexyl] 2-oxopyrrolidine-5-carboxylate
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane; N,N-dimethyl-formamide at 0 - 23℃; for 24.5h; Inert atmosphere; | 98% |
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 0 - 20℃; for 20.5h; Inert atmosphere; | 86% |
Conditions | Yield |
---|---|
In ethanol at 25℃; for 0.5h; | 98% |
2-[(2-aminoethoxy)methyl]-4-(2-chlorophenyl)-3-ethoxycarbonyl-5-methoxycarbonyl-6-methyl-1,4-dihydropyridine
L-Pyroglutamic acid
amlodipine (R)-(+)-pyroglutamate
Conditions | Yield |
---|---|
In ethanol at 5 - 20℃; for 1h; | 97.1% |
Conditions | Yield |
---|---|
In water for 2h; Heating; | 97% |
methyl glyoxylate methyl hemi-acetal
L-Pyroglutamic acid
methyl 2-hydroxy-2-(2-oxoprolin-1-yl)acetate
Conditions | Yield |
---|---|
In acetone for 60h; Heating; | 97% |
Conditions | Yield |
---|---|
In ethanol at 20℃; for 1h; | 97% |
di-tert-butyl dicarbonate
L-Pyroglutamic acid
(2S,5R)-6-(sulfoxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxamide
Conditions | Yield |
---|---|
Stage #1: L-Pyroglutamic acid With benzyl chloride; triethylamine In chloroform at 0℃; for 3.5h; Reflux; Stage #2: di-tert-butyl dicarbonate With dmap; triethylamine In ethyl acetate at -25 - 35℃; for 4.91667h; Stage #3: With pyrographite; sodium sulfate In cyclohexane; water Solvent; Temperature; | 96.3% |
Conditions | Yield |
---|---|
With sulfuric acid In dichloromethane | 96% |
With sulfuric acid In dichloromethane at 0 - 20℃; Inert atmosphere; | 78% |
With sulfuric acid In dichloromethane at 25℃; for 48h; | 65% |
Conditions | Yield |
---|---|
With thionyl chloride; N,N-dimethyl-formamide for 15h; Ambient temperature; | 96% |
With thionyl chloride at 0 - 20℃; | 96% |
With thionyl chloride; N,N-dimethyl-formamide at 20℃; | 90% |
(S)-benzyl 2-((S)-2-(2-amino-3-(3-((S)-2-(benzyloxycarbonylamino)-3-tert-butoxy-3-oxopropyl)-2-(triethylsilyl)-1H-indol-6-yl)-4-methylpentanamido)-4-methylpentanamido)-3-methylbutanoate
L-Pyroglutamic acid
(S)-benzyl 2-((S)-2-(2-amino-3-(3-((S)-2-(benzyloxycarbonylamino)-3-tert-butoxy-3-oxopropyl)-2-(triethylsilyl)-1H-indol-6-yl)-4-methyl-2-((S)-5-oxopyrrolilidine-2-carboxamido)pentanamido)-4-methylpentanamido)-3-methylbutanoate
Conditions | Yield |
---|---|
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In tetrahydrofuran at 0℃; for 8h; | 96% |
Conditions | Yield |
---|---|
In acetone at 20 - 25℃; for 4h; Solvent; | 96% |
vortioxetine
L-Pyroglutamic acid
Conditions | Yield |
---|---|
In isopropyl alcohol at 20 - 60℃; for 2h; | 96% |
2-(2-Amino-ethoxymethyl)-4-(2-chloro-phenyl)-6-methyl-pyridine-3,5-dicarboxylic acid 3-ethyl ester 5-methyl ester
L-Pyroglutamic acid
Conditions | Yield |
---|---|
In ethyl acetate at 25℃; for 1h; | 95.3% |
In ethyl acetate at 25℃; for 1h; | 95.3% |
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