Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
448.9±40.0 °C at 760 mmHg
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provides coniferyl ferulate(CAS#:76060-35-0) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Articles of coniferyl ferulate are included as well.>> amp version: coniferyl ferulate
The anhydrous salts of the Lewis base 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) with 4-aminobenzoic acid [1-aza-8-azoniabicyclo[5.4.0]undec-7-ene 4-aminobenzoate, C9H17N2 +·C7H6NO2 − (I)], 3,5-dinitrobenzoic acid [1-aza-8-azoniabicyclo[5.4.0]undec-7-ene 3,5-dinitrobenzoate, C9H17N2 +·C7H3N2O6 −, (II)] and 3,5-dinitrosalicylic acid (DNSA) [1-aza-8-azoniabicyclo[5.4.0]undec-7-ene 2-hydroxy-3,5-dinitrobenzoate, C9H17N2 +·C7H3N2O7 −, (III)] have been determined and their hydrogen-bonded structures are described. In both (II) and (III), the DBU cations have a common disorder in three of the C atoms of the six-membered ring moieties [site-occupancy factors (SOF) = 0.735 (3)/0.265 (3) and 0.686 (4)/0.314 (4), respectively], while in (III), there is additional rotational disorder in the DNSA anion, giving two sites (SOF = 0.72/0.28, values fixed) for the phenol group. In the crystals of (I) and (III), the cation-anion pairs are linked through a primary N—H⋯Ocarboxyl hydrogen bond [2.665 (2) and 2.869 (3) a, respectively]. In (II), the ion pairs are linked through an asymmetric three-centre R 1 2(4), N—H⋯O,O′ chelate association. In (I), structure extension is through amine N—H⋯Ocarboxyl hydrogen bonds between the PABA anions, giving a three-dimensional structure. The crystal structures of (II) and (III) are very similar, the cation-anion pairs being associated only through weak C—H⋯O hydrogen bonds, giving in both overall two-dimensional layered structures lying parallel to (001). No π-π ring associations are present in any of the structures.
crystal structure, 1,8-diazabicyclo[5.4.0]undec-7-ene, BDU, benzoate salts, hydrogen bonding
Crystal structures of three anhydrous salts of the Lewis base 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) with the ring-substituted benzoic acid analogues 4-aminobenzoic acid, 3,5-dinitrobenzoic acid and 3,5-dinitrosalicylic acid
Graham Smitha,* and Daniel E. Lynchb
2016 Mar 1;
The first species of Dolichogenidea (Hymenoptera: Braconidae, Microgastrinae) with the second mediotergite broadly quadrate to rectangular are revised, and eight new species from Area de Conservacion Guanacaste (ACG), Costa Rica are described, all authored by Fernandez-Triana & Boudreault: alejandromasisi, angelagonzalezae, carlosmanuelrodriguezi, genuarnunezi, josealfredohernandezi, melaniamunozae, rogerblancoi, and yeimycedenoae. A new species group (carlosmanuelrodriguezi) within the genus is proposed to accommodate those species, as well as additional undescribed species from the Neotropical region found in collections. All new species are found in rainforests (120-900 m) and all are parasitoids of Depressariidae (except for one species parasitizing Choreutidae). The unique shape of the second mediotergite and long ovipositor are features shared with the alejandromorai species group in the genus Apanteles, an example of convergent evolution; both wasp groups also parasitize similar hosts in ACG.
Area de Conservacion Guanacaste, DNA barcoding, Dolichogenidea , Microgastrinae , parasitoid biology, taxonomic revision
A revision of Dolichogenidea (Hymenoptera, Braconidae, Microgastrinae) with the second mediotergite broadly rectangular from Area de Conservacion Guanacaste, Costa Rica
Jose Fernandez-Triana,corresponding author1 Caroline Boudreault,1 Tanya Dapkey,2 M. Alex Smith,3 Winnie Hallwachs,2 and Daniel Janzen2
The anhydrous salts morpholinium (tetrahydro-2-H-1,4-oxazin-4-ium) phenoxyacetate, C4H10NO+·C8H7O3 −, (I), morpholinium (4-fluorophenoxy)acetate, C4H10NO+·C8H6 FO3 −, (II), and isomeric morpholinium (3,5-dichlorophenoxy)acetate (3,5-D), (III), and morpholinium (2,4-dichlorophenoxy)acetic acid (2,4-D), C4H10NO+·C8H5Cl2O3 −, (IV), have been determined and their hydrogen-bonded structures are described. In the crystals of (I), (III) and (IV), one of the the aminium H atoms is involved in a three-centre asymmetric cation-anion N—H⋯O,O′ R 1 2(4) hydrogen-bonding interaction with the two carboxyl O-atom acceptors of the anion. With the structure of (II), the primary N—H⋯O interaction is linear. In the structures of (I), (II) and (III), the second N—H⋯Ocarboxyl hydrogen bond generates one-dimensional chain structures extending in all cases along . With (IV), the ion pairs are linked though inversion-related N—H⋯O hydrogen bonds [graph set R 4 2(8)], giving a cyclic heterotetrameric structure.
crystal structure, morpholine salts, phenoxyacetic acids, herbicides, 2,4-D, 3,5-D, hydrogen bonding
Crystal structures and hydrogen bonding in the morpholinium salts of four phenoxyacetic acid analogues
Graham Smitha,* and Daniel E. Lynchb
2015 Nov 1;