Detail of "6203-18-5"

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CAS Number:
6203-18-5
Name:
2-Propenal,3-[4-(dimethylamino)phenyl]-
Superlist Name:
4-(Dimethylamino)cinnamaldehyde
Molecular Structure:
Formula:
C₁₁H₁₃NO
Molecular Weight:
175.23
Synonyms:
Cinnamaldehyde,p-(dimethylamino)- (6CI,7CI,8CI);3-(4-Dimethylaminophenyl)propenal;3-[4-(Dimethylamino)phenyl]-2-propenal;4-(N,N-Dimethylamino)cinnamaldehyde;4-Dimethylaminocinnamic aldehyde;4-Dimethylaminozimtaldehyde;NSC 62138;p-(Dimethylamino)cinnamaldehyde;p-(Dimethylamino)cinnamic aldehyde;p-(N,N-Dimethylamino)cinnamaldehyde;4-Dimethylaminocinnamaldehyde;
EINECS:
228-267-0
Density:
1.057 g/cm³
Melting Point:
138-140 °C(lit.)
Boiling Point:
328.9 °C at 760 mmHg
Flash Point:
131.2 °C
Solubility:
dioxane: 50 mg/mL, clear
Appearance:
white to light yellow crystal powder
Hazard Symbols:
Xi
Risk Codes:
36/37/38
Safety:
26-36 Details
Transport Information:
UN 1789 8/PG 3

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Determination of flavanols (tannins) in barley grains: Determination of flavanols (tannins) in barley grains. Truelsen, Ebbe (Plantebiokem. Afd., Stantens Planteavlsforsog, Lyngby 2800, Den.). Tidsskr. Planteavl, 88(4), 387-93 (Danish) 1984. CODEN: TPLAAV. ISSN: 0040-7135. DOCUMENT TYPE: Journal CA Section: 17 (Food and Feed Chemistry) A rapid method for detn. of tannins in barley grains is described. The flavanols were extd. with 70% Me2CO, 10 mM HCl at room temp. and detd. by reaction with 4-dimethylaminocinnamaldehyde (DAC) [6203-18-5]. The green reaction product had an absorption max. at 640 nm. A linear std. curve was found by measuring the max. absorbance, which appeared 1-3 min after mixing the reagents. The reaction rates were identical for the reaction between DAC and catechin (std.) and the extd. barley tannins, resp. Between 0.078% and 0.131% of tannins with a std. deviation of 0.0012% corresponding to a relative std. deviation of 1.1% were found in 80 barley samples. The adequacy of this method for the detn. of tannins in barley grains is discussed.

Colorimetric determination of sympathomimetic amines methyldopa and noradrenaline: Colorimetric determination of sympathomimetic amines methyldopa and noradrenaline. Walash, Mohamed I.; Abou Ouf, Abed; Salem, Fatma B. (Fac. Pharm., Mansoura Univ., Mansoura, Egypt). J. Assoc. Off. Anal. Chem., 68(1), 91-5 (English) 1985. CODEN: JANCA2. ISSN: 0004-5756. DOCUMENT TYPE: Journal CA Section: 64 (Pharmaceutical Analysis) Section cross-reference(s): 2 The chromogenic reagent p-dimethylaminocinnamaldehyde (PDAC) [6203-18-5] is uses for the detn. of the sympathomimetic amines methyldopa (I) [555-30-6] and noradrenaline (II) [51-41-2]. The method is based on measurement of the orange color developed when an alk. soln. of I and II is allowed to react with PDAC at pH 5.0. The color developed obeys Beer's law in the concn. range 0.1-1.5 mL of 2 ′ 10-3M soln. of II and I. The results are compared with those obtained with another chromogenic reagent p-dimethylaminobenzaldehyde (PDAB) [100-10-7]. Detns. of dosage forms of the drugs, using PDAC and PDAB reagents, agreed well with results of detn. by official pharmacopeial methods.