33130
4-(二甲基氨基)苯甲醛
≥99% (perchloric acid titration), puriss. p.a., reag. Ph. Eur.
别名:
Ehrlich 试剂
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关于此项目
线性分子式:
(CH3)2NC6H4CHO
化学文摘社编号:
分子量:
149.19
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352100
EC Number:
202-819-0
MDL number:
Beilstein/REAXYS Number:
606802
Assay:
≥99% (perchloric acid titration)
产品名称
4-(二甲基氨基)苯甲醛, puriss. p.a., reag. Ph. Eur., ≥99% (perchloric acid titration)
InChI key
BGNGWHSBYQYVRX-UHFFFAOYSA-N
InChI
1S/C9H11NO/c1-10(2)9-5-3-8(7-11)4-6-9/h3-7H,1-2H3
SMILES string
CN(C)c1ccc(C=O)cc1
agency
USP/NF, reag. Ph. Eur.
grade
puriss. p.a.
assay
≥99% (perchloric acid titration)
ign. residue
≤0.1% (as SO4)
loss
≤0.5% loss on drying
mp
72-75 °C (lit.), 73-75 °C
solubility
ethanol: 0.1 g/10 mL
cation traces
Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤50 mg/kg, K: ≤50 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Na: ≤50 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg
Quality Level
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General description
4-(Dimethylamino)benzaldehyde is also commonly referred as Ehrlich′s reagent. Its crystal structure has been investigated by X-ray analysis. Its crystals belong to the monoclinic crystal system and exhibits space group P21/n. 4-(Dimethylamino)benzaldehyde exhibits dual fluorescence. Its dipole moment in various excited states has been evaluated using their electronic spectra and Bilot-Kawski theory.
Application
与吡咯和伯胺反应生成有色缩合产物(席夫碱)。
4-(Dimethylamino)benzaldehyde in micelle (sodium dodecyl sulphate) containing medium may be used for the quantification of hydroxyproline in meat samples by spectrophotometric methods.
signalword
Warning
hcodes
Hazard Classifications
Skin Sens. 1B
存储类别
11 - Combustible Solids
wgk
WGK 1
flash_point_f
327.2 °F - closed cup
flash_point_c
164 °C - closed cup
ppe
Eyeshields, Gloves, type N95 (US)
Determination of pyrrole derivatives and hydroxyproline with 4-(dimethylamino) benzaldehyde in a micellar medium.
Esteve-Romero JS, et al.
Analytical Letters, 27(8), 1557-1567 (1994)
4-(Dimethylamino) benzaldehyde.
Gao B and Zhu J-L.
Acta Crystallographica Section E, Structure Reports Online, 64(7), 1182-1182 (2008)
Kawski A, et al.
Chemical Physics Letters, 448(4), 208-212 (2007)
Jun-Min Guo et al.
Journal of agricultural and food chemistry, 58(11), 6556-6561 (2010-05-15)
A simple colorimetric method for the differentiation of indoleacetic acid (IAA) and indolebutyric acid (IBA) in plant samples is described. The color change is based upon the reaction between the auxins and p-(dimethylamino)benzaldehyde (PDAB, Ehrlich reagent) following the electrophilic substitution
Spectrophotometric determination of certain cephalosporins through oxidation with cerium(IV) and 1-chlorobenzotriazole.
M M Ayad et al.
Journal of pharmaceutical and biomedical analysis, 20(3), 557-564 (2000-03-04)
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