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CAS No. : | 302-79-4 | MDL No. : | MFCD00001551 |
Formula : | C20H28O2 | Boiling Point : | - |
Linear Structure Formula : | C6H6(CH3)3CHCHC(CH3)CHCHCHC(CH3)CHCOOH | InChI Key : | - |
M.W : | 300.44 | Pubchem ID : | - |
Synonyms : |
Vitamin A acid;all-trans-Retinoic acid;ATRA;Vitinoin;StievaA Forte;StievaA;RetisolA;Eudyna;EpiAberel;Dermairol;RetinA MICRO;RetinA;Renova;Avita;Aknoten;Vitamin A Acid. US brand names: Aberel;tretinoinum;trans vitamin A acid;trans retinoic acid;TRA;betaretinoic acid;alltrans vitamin A acid;RA;NSC 122758;NSC 122578;Tretinoin
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Chemical Name : | (2E,4E,6E,8E)-3,7-Dimethyl-9-(2,6,6-trimethylcyclohex-1-en-1-yl)nona-2,4,6,8-tetraenoic acid |
Signal Word: | Danger | Class: | 9 |
Precautionary Statements: | P201-P202-P264-P270-P273-P280-P301+P312+P330-P302+P352-P308+P313-P332+P313-P391-P405-P501 | UN#: | 3077 |
Hazard Statements: | H302-H315-H360-H410 | 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 |
---|---|---|
1 g | With dmap; 2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane-2,4,6-trioxide; triethylamine; In ethyl acetate; at 25℃; for 15h; | EXAMPLE 1 Synthesis of 2-(nicotinamido)-ethyl retinoate (la). In a reaction flask 0.6 g hydroxyethylnicotinamide (3.6 mmol), 5 ml ethyl acetate, 1.08 g retinoic acid (3.6 mmol), 0.8 g triethylamine (7.92 mmol), catalytic Nu,Nu-dimethylaminopyridine were charged and under stirring, at about 25C, 2.52 g of a 50% solution of 4,6-tri-n-propyl-2,4,6-trioxo- 1,3,5,2,4,6-trioxa-triphosphorinane in ethyl acetate (3.96 mmol) was added. The reaction mixture was kept under these conditions for fifteen hours and when the reaction was complete 5 ml of water were added. The organic phase was washed with sodium hydroxide IN (1 x 5 ml) and hydrochloric acid IN (1 x 5 ml). The organic phase was brought to residue by distillation under vacuum, and purified by column chromatography (eluent: methylene chloride: methanol 97.5:2.5), to give 1 g of 2-(nicotinamido)-ethyl retinoate as a solid.1H-NMR (CDC13, 300 MHz): delta 8.99 (d, 1H), 8.68 (dd, 1H), 8.11 (dt, 1H), 7.35 (dd, 1H), 7.10 (m, 1H), 7.00 (dd, 1H), 6.25 (m, 2H), 6.16 (m, 2H), 5.75 (s, 1H), 4.33 (t, 2H), 3.75 (m, 2H), 2.32 (s, 3H), 1.99 (m, 4H), 1.68 (s, 3H), 1.50 (m, 3H), 1.43 (m, 2H), 0.98 (s, 6H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
All-trans retinoic acid (2 g) and CDI (2.0 g) were dissolved in 20 mL of dichloromethane, stirred at 25 ° C for 2 h, and filtered. To the filtrate was added 3,3-dimethylamino-1,2-propanediol (1.2 g), DBU (1 g) and heated to reflux for 24 h. The reaction solution was washed three times with dilute hydrochloric acid, dried over Na2S04, and the dry solvent was evaporated to give the product 1 bis-all-trans-retinoic acid-3,3-dimethylamino-1,2-propanediol ester. The reaction was carried out by TLC (developing solvent: methanol: dichloromethane / 1: 1, UV detection (lambda = 254 nm)); mass spectrometry was used to determine the product structure. |
A1356859[ 13497-05-7 ]
Sodium (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohex-1-en-1-yl)nona-2,4,6,8-tetraenoate
Reason: Free-salt