There will be a HazMat fee per item when shipping a dangerous goods. The HazMat fee will be charged to your UPS/DHL/FedEx collect account or added to the invoice unless the package is shipped via Ground service. Ship by air in Excepted Quantity (each bottle), which is up to 1g/1mL for class 6.1 packing group I or II, and up to 25g/25ml for all other HazMat items.
Type | HazMat fee for 500 gram (Estimated) |
Excepted Quantity | USD 0.00 |
Limited Quantity | USD 15-60 |
Inaccessible (Haz class 6.1), Domestic | USD 80+ |
Inaccessible (Haz class 6.1), International | USD 150+ |
Accessible (Haz class 3, 4, 5 or 8), Domestic | USD 100+ |
Accessible (Haz class 3, 4, 5 or 8), International | USD 200+ |
Purity | Size | Price | VIP Price | USA Stock *0-1 Day | Global Stock *5-7 Days | Quantity | ||||||
{[ item.p_purity ]} | {[ item.pr_size ]} | Inquiry |
{[ getRatePrice(item.pr_usd, 1,1,item.pr_is_large_size_no_price) ]} {[ getRatePrice(item.pr_usd,item.pr_rate,1,item.pr_is_large_size_no_price) ]} |
{[ getRatePrice(item.pr_usd, 1,1,item.pr_is_large_size_no_price) ]} | Inquiry {[ getRatePrice(item.pr_usd,item.pr_rate,item.mem_rate,item.pr_is_large_size_no_price) ]} {[ getRatePrice(item.pr_usd,1,item.mem_rate,item.pr_is_large_size_no_price) ]} | {[ item.pr_usastock ]} | in stock Inquiry - | {[ item.pr_chinastock ]} | {[ item.pr_remark ]} in stock Inquiry - | Login | Inquiry |
Please Login or Create an Account to: See VIP prices and availability
CAS No. : | 27871-49-4 | MDL No. : | MFCD00064265 |
Formula : | C4H8O3 | Boiling Point : | - |
Linear Structure Formula : | CH3CH(OH)CO2CH3 | InChI Key : | LPEKGGXMPWTOCB-VKHMYHEASA-N |
M.W : | 104.10 | Pubchem ID : | 94386 |
Synonyms : |
|
Signal Word: | Danger | Class: | 3 |
Precautionary Statements: | P210-P233-P240-P241-P242-P243-P261-P264-P271-P280-P303+P361+P353-P304+P340+P312-P305+P351+P338-P337+P313-P370+P378-P403+P233-P403+P235-P405-P501 | UN#: | 3272 |
Hazard Statements: | H225-H319-H335 | Packing Group: | Ⅱ |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
64% | With 1,8-diazabicyclo[5.4.0]undec-7-ene; In tetrahydrofuran; at 0 - 20℃; for 1.5h;Inert atmosphere; | Part I- Synthesis of (S)-methyl6-((1-methoxy-1-oxopropan-2-yl)oxy)-5-nitronicotinate [0248] To methyl (S)-lactate (0.56 g, 5.4 mmol) and methyl 6-chloro-5-nitro-pyridine-3- carboxylate (0.8 g, 3.7 mmol) in anhydrous tetrahydrofuran (15 mL) under nitrogen at 0°C was added l,8-diazabicyclo[5.4.0]undec-7-ene (0.88 mL, 5.9 mmol). The solution quickly turned dark. The reaction mixture was stirred at 0°C for 30 minutes, then allowed to stir at ambient temperature for one hour. A solid precipitated out of solution. Next, the reaction mixture was diluted with ethyl acetate (15 mL), solids were removed by filtration, and the filtrate was concentrated in the presence of silica to provide a crude product, which was purified by column chromatography eluting with a gradient of 10-50percent ethyl acetate in hexanes to provide the title compound (0.68 g, 64percent yield); HPLC retention time Method A: 5.46 minutes (98.9percent pure). |
With 1,8-diazabicyclo[5.4.0]undec-7-ene; In tetrahydrofuran; at 0 - 20℃; for 1.5h;Inert atmosphere; Molecular sieve; | Part I - Synthesis of (S)-methyl -((l-methoxy-l-oxopropan-2-yl)oxy)-5-nitronicotinate [0362] To methyl (S)-lactate (5.8 g, 55.4 mmol) and methyl 6-chloro-5-nitropyridine-3- carboxylate (10 g, 46 mmol) in anhydrous tetrahydrofuran (100 mL) under nitrogen with activated molecular sieves at 0 °C was added l ,8-diazabicyclo[5.4.0]undec-7-ene (9 mL, 60 mmol). The solution quickly turned dark, was stirred at 0 °C for thirty minutes, then was allowed to stir at ambient temperature for an hour. A solid precipitated out of solution. The solution was diluted with ethyl acetate, solids were filtered off, and then the filtrates were concentrated. The residue was purified by column chromatography eluting with a gradient of 10-50percent ethyl acetate in hexanes to yield the title compound. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
72% | With potassium carbonate; at 160℃; for 16h;Flow reactor; | The stainless steel pressure vessel (40 cc, Swagelok) is filled in with the methanol (15.0 g: Sigma-Aldrich, 003e99.8percent) solution of the metal salt (metal ion supply source), and sucroses (0.450 g: Fluka, 003e99.0percent) and catalyst (0.150 g). The reactor is closed and it heats up under the mixing (700 rpm) with 160. In 160 reaction, it makes maintained for 16 hours and the container reaction rapidly is cooled in the cold water after this period as the dipping. Sample from the reaction container was filtered and it analyzed with the HPLC (the Agilent 1200, the Biorad Aminex HPX-87H column, 65, 0.05 M H2SO4, 0.6 ml min-1) and it was the art exhibition ring hexose and dihydroxy acetone (DHA), the methyllactate (ML) using the fixed quantity: and GC (the Agilent 7890 in which the Phenomenex Solgelwax column is comprehended) the glyceraldehyde (GLA), and methyl vinyl glycol rate (MVG, and the methyl 2- hydroxy -3- butenoate) and glycol aldehyde dimethylacetal (GADMA) the fixed quantity. |