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. : | 617-55-0 | MDL No. : | MFCD00066215 |
Formula : | C6H10O5 | Boiling Point : | - |
Linear Structure Formula : | CH3O2CCH(OH)CH2CO2CH3 | InChI Key : | YSEKNCXYRGKTBJ-BYPYZUCNSA-N |
M.W : | 162.14 | Pubchem ID : | 10285815 |
Synonyms : |
|
Signal Word: | Danger | Class: | 3 |
Precautionary Statements: | P210-P233-P240-P241-P242-P243-P261-P272-P280-P303+P361+P353-P305+P351+P338+P310-P333+P313-P370+P378-P403+P235-P501 | UN#: | 1993 |
Hazard Statements: | H226-H317-H318 | Packing Group: | Ⅲ |
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 |
---|---|---|
With hydrogen; In Dimethyl ether; at 56 - 110℃; under 120012.0 Torr; for 0.5 - 2h;Product distribution / selectivity; | HYDROGENATION OF DIMETHYL MALATE:; The following conditions were used Hydrogen pressure 0,1, 10 and 30 bar Substrate 0,4 and 1,5 mol% Catalyst CuMn AI203, particle size 90-180 um Samples are taken at regular intervals after the substrate feed is started. Experiment 1: This was performed according to the procedure described above in Materials, Equipment and Activation Procedure. The reaction temperature was 56C, Hydrogen pressure was 10bar, DME pressure was 150bar, substrate concentration in solution was 0.4 mol%, and 10G of catalyst were used. The following results were obtained: Time on DM L DE BT HGB H-THF HGB equiv Selectivity stream area% area% 5 67.5 0.22 15.16 0.14 15.86 0.1 31.02 95.4% 13 58.4 0.09 21.45 0.27 18.29 0.07 39.74 95.5% 20 63.1 0.15 19.8 0.37 15.6 0.07 35.4 95.9% 30 67.8 0.07 18.2 0.58 12.39 0.06 30.59 95.0% 60 76.5 0.04 15 0.48 7.22 0.04 22.22 94.6% DM = dimethyl malate L = 2 (5H)-Furanone DE = 3,4-dihydroxy methyl butyrate ester BT = butanetriol HGB = 3-hydroxy-gammabutyrolactone (produced by in-situ cyclisation of 3,4-dihydroxy methyl butyrate ester) H-THF = hydroxy-THF Notes: HGB EQUIVALENT = area%"HGB"+ area%"Dihydroxy ester" (as hydroxy ester can be cyclise to HGB) SELECTIVITY DEFINED AS (AREA% USEFUL PRODUCTS) / (AREA % OF ALL PRODUCTS) HGB (S) was obtained in 97.9% ee Experiment 2: This was performed according to the procedure described above in Materials, Equipment and Activation Procedure. The reaction temperature was 110C, Hydrogen pressure was 10bar, DME pressure was 150bar, substrate concentration in solution was 1.5 mol%, and 5.9g of catalyst were used. The following results were obtained : Time on DM L DE BT HGB H-THF HGB equiv Selectivity stream area% area% 5 64.1 0.55 18.22 1.6 15.3 33.52 93.4% 15 72.6 0.24 15.38 0.9 10 0.1 25.38 92.6% 30 77.6 0.16 13.3 0.5 7.8 0.1 21.1 94.2% Note: HGB (S) obtained in 98.8% ee Conclusion: These experiments illustrate high selectivity for HGB in the hydrogenation of dimethyl malate EXPERIMENT-MEOH removal and the effect on the conversion of LDMM to HGB Experiment 3: This was performed according to the procedure described above in Materials, Equipment and Activation Procedure. The reaction temperature was 80C, Hydrogen pressure was 10bar, DME pressure was 150bar, substrate concentration in solution was 0.4 mol%, and 87g of catalyst were used. After 2 hours on stream, the product was found to contain 39.8 area% starting material and 51.5 area% HGB-EQUIVALENT (as defined in Example 1). The product was formed with 85.5% selectivity. The collected product from this experiment, after depressurisation and removal of Methanol, was used as the feed for another hydrogenation, under otherwise identical conditions. The following results were obtained. Time on DM area% L DE BT HGB HGB Selectivity stream equiv area% 50 14.7 5.3 15.2 8 47.4 62.6 73.4% 60 18. 8 4.4 14. 8 11.7 45.5 60.3 74.3% 75 21.15 3.7 21.1 11.5 43.2 64. 3 81.5% 90 13. 4 7. 1 5.5 59.1 66.2 76.4% 105 26.7 3.4 17.5 8.7 40.6 58. 1 79.3% 120 25.6 2.3 17.7 9.5 42 59.7 80. 2% Conclusions : When the reaction products from one incomplete hydrogenation are depressurised and Methanol removed by evaporation, then re-hydrogenated the conversion is increased FROM-50% TO-60%, and the selectivity remains approximately constant. |
[ 13171-64-7 ]
(2S,3S)-Dimethyl 2,3-dihydroxysuccinate
Similarity: 1.00
[ 87-91-2 ]
(2R,3R)-Diethyl 2,3-dihydroxysuccinate
Similarity: 0.94
[ 7554-28-1 ]
(R)-Diethyl 2-hydroxysuccinate
Similarity: 0.94
[ 13811-71-7 ]
(2S,3S)-Diethyl 2,3-dihydroxysuccinate
Similarity: 0.94
[ 62961-64-2 ]
(2S,3S)-Diisopropyl 2,3-dihydroxysuccinate
Similarity: 0.91
[ 13171-64-7 ]
(2S,3S)-Dimethyl 2,3-dihydroxysuccinate
Similarity: 1.00
[ 87-91-2 ]
(2R,3R)-Diethyl 2,3-dihydroxysuccinate
Similarity: 0.94
[ 7554-28-1 ]
(R)-Diethyl 2-hydroxysuccinate
Similarity: 0.94
[ 13811-71-7 ]
(2S,3S)-Diethyl 2,3-dihydroxysuccinate
Similarity: 0.94
[ 62961-64-2 ]
(2S,3S)-Diisopropyl 2,3-dihydroxysuccinate
Similarity: 0.91
[ 13171-64-7 ]
(2S,3S)-Dimethyl 2,3-dihydroxysuccinate
Similarity: 1.00
[ 87-91-2 ]
(2R,3R)-Diethyl 2,3-dihydroxysuccinate
Similarity: 0.94
[ 7554-28-1 ]
(R)-Diethyl 2-hydroxysuccinate
Similarity: 0.94
[ 13811-71-7 ]
(2S,3S)-Diethyl 2,3-dihydroxysuccinate
Similarity: 0.94
[ 62961-64-2 ]
(2S,3S)-Diisopropyl 2,3-dihydroxysuccinate
Similarity: 0.91