バターイエロー。パラジメチルアミノアゾベンゼン
WordNet
- place end to end without overlapping; "The frames must be butted at the joints"
- the part of a plant from which the roots spring or the part of a stalk or trunk nearest the roots
- thick end of the handle (同)butt end
- the small unused part of something (especially the end of a cigarette that is left after smoking) (同)stub
- a large cask (especially one holding a volume equivalent to 2 hogsheads or 126 gallons)
- a victim of ridicule or pranks (同)goat, laughingstock, stooge
- to strike, thrust or shove against; "He butted his sister out of the way"; "The goat butted the hiker with his horns" (同)bunt
- cowardly or treacherous; "the little yellow stain of treason"-M.W.Straight; "too yellow to stand and fight"
- turn yellow; "The pages of the book began to yellow"
- yellow color or pigment; the chromatic color resembling the hue of sunflowers or ripe lemons (同)yellowness
- changed to a yellowish color by age; "yellowed parchment" (同)yellowed
- of the color intermediate between green and orange in the color spectrum; of something resembling the color of an egg yolk (同)yellowish, xanthous
- spread butter on; "butter bread"
- a fighter who strikes the opponent with his head
- an edible emulsion of fat globules made by churning milk or cream; for cooking and table use
- utter or declare in a very loud voice; "You dont have to yell--I can hear you just fine" (同)scream
- a hill that rises abruptly from the surrounding region; has a flat top and sloping sides
PrepTutorEJDIC
- …'を'頭(角)で突く(押す) / 頭(角)で突く(押す) / 頭(角)で突くこと(押すこと),飼突き
- あざけり(批評などの)的;笑いもの
- (武器・道具の)太いほうの端 / 残片
- (ぶどう酒などの)大だる,一たる
- 『黄色の』 / 皮膚の黄色い / 《俗》おく病な(cowardly) / (新聞が)センセーショナルな,扇情的な / 〈U〉『黄色』 / 〈C〉黄色いもの;卵黄 / 〈U〉〈C〉黄色の絵の具(顔料,染料),黄色の服 / …‘を'黄色にする / 黄色になる
- 『バター』 / (バターに似た)パンに塗る食品 / …‘に'バターを塗る
- (…を求めて)『大声で叫ぶ』《+for+名》;(…に)大声をあげる《+at+名》 / (…に向かって)…‘を'叫んで(大声で)言う《+out+名(+名+out)+at(to)+名》 / 『叫び声』金切り声,わめき
- (西部平原の)孤立した山
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/11/11 04:55:54」(JST)
[Wiki en表示]
Methyl yellow
|
| Names |
| IUPAC name
p-Dimethylaminoazobenzene
|
| Other names
4-Dimethylaminoazobenzene, DAB, N,N-Dimethyl-4-phenylazoaniline, N,N-Dimethyl-4-aminoazobenzene, Butter Yellow, Solvent Yellow 2, C.I. 11020
|
| Identifiers |
|
CAS Registry Number
|
60-11-7 Y |
| ChEMBL |
ChEMBL263116 Y |
| ChemSpider |
5829 Y |
| EC number |
200-455-7 |
InChI
-
InChI=1S/C14H15N3/c1-17(2)14-10-8-13(9-11-14)16-15-12-6-4-3-5-7-12/h3-11H,1-2H3/b16-15+ Y
Key: JCYPECIVGRXBMO-FOCLMDBBSA-N Y
-
InChI=1/C14H15N3/c1-17(2)14-10-8-13(9-11-14)16-15-12-6-4-3-5-7-12/h3-11H,1-2H3/b16-15+
Key: JCYPECIVGRXBMO-FOCLMDBBBF
|
| Jmol-3D images |
Image |
| PubChem |
6053 |
| RTECS number |
BX7350000 |
SMILES
-
N(=N/c1ccccc1)\c2ccc(N(C)C)cc2
|
| UNII |
A49L8E13FD Y |
| Properties |
|
Chemical formula
|
C14H15N3 |
| Molar mass |
225.30 g·mol−1 |
| Appearance |
Yellow crystals |
| Melting point |
111–116 °C (232–241 °F; 384–389 K)
decomposes[1] |
|
Solubility in water
|
13.6 mg/l |
| log P |
4.58 |
| Hazards |
| Main hazards |
Carcinogen[2] |
| GHS pictograms |
[1] |
| GHS signal word |
Danger |
|
GHS hazard statements
|
H301, H351[1] |
|
GHS precautionary statements
|
P281, P301+310[1] |
|
EU classification (DSD)
|
T |
| R-phrases |
R25, R40 |
| S-phrases |
S36/37, S45 |
| NFPA 704 |
|
| US health exposure limits (NIOSH): |
|
PEL (Permissible)
|
OSHA-regulated carcinogen[2] |
|
REL (Recommended)
|
Ca[2] |
|
IDLH (Immediate danger
|
Ca [N.D.][2] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|
| Y verify (what is: Y/N?) |
| Infobox references |
|
|
Methyl yellow, or C.I. 11020, is a chemical compound which may be used as a pH indicator.
| Methyl yellow (pH indicator) |
| below pH 2.9 |
|
above pH 4.0 |
| 2.9 |
⇌ |
4.0 |
In aqueous solution at low pH, methyl yellow appears red. Between pH 2.9 and 4.0, methyl yellow undergoes a transition, to become yellow above pH 4.0.
Contents
- 1 Safety
- 2 See also
- 3 References
- 4 External links
Safety
It is a possible carcinogen.[3] As "butter yellow", the agent had been used as a food additive before its toxicity was recognized.[4] The result from consuming such chemicals is tumors on the liver.
See also
Structurally similar compounds:
References
- ^ a b c d Dimethyl yellow
- ^ a b c d "NIOSH Pocket Guide to Chemical Hazards #0220". National Institute for Occupational Safety and Health (NIOSH).
- ^ "NIOSH Pocket Guide to Chemical Hazards #0220". National Institute for Occupational Safety and Health (NIOSH).
- ^ Opie, E. L. (1944). "The Pathogenesis of Tumors of the Liver Produced by Butter Yellow" (pdf). The Journal of Experimental Medicine 80 (3): 231–246. doi:10.1084/jem.80.3.231. PMC 2135460. PMID 19871411.
External links
- International Chemical Safety Card 1498
- "para-dimethylaminoazobenzene". Inchem.
- CDC - NIOSH Pocket Guide to Chemical Hazards
- Chung, K. T.; Fulk, G. E.; Andrews, A. W. (1981). "Mutagenicity testing of some commonly used dyes" (pdf). Applied and Environmental Microbiology 42 (4): 641–648. PMC 244076. PMID 7039509.
UpToDate Contents
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English Journal
- Profiling the quality characteristics of the butter of Pentadesma butyracea with reference to shea butter.
- Ayegnon BP1, Kayodé AP1, Tchobo FP2, Azokpota P1, Soumanou MM2, Hounhouigan DJ1.
- Journal of the science of food and agriculture.J Sci Food Agric.2015 Dec;95(15):3137-43. doi: 10.1002/jsfa.7052. Epub 2015 Jan 16.
- BACKGROUND: Pentadesma butyracea is a tropical plant species. Its kernels are rich in edible butter similar to shea butter. This study evaluated the quality characteristics of the Pentadesma butter produced by cottage enterprises in Benin, using a quantitative survey approach and physicochemical and
- PMID 25523343
- [Mutagenic Activity of Four Aminoazo Compounds with Different Carcinogenicity for Rat Liver in the Ames Test].
- Frolova TS, Sinitsyna OI, Kaledin VI.
- Biofizika.Biofizika.2015 Sep-Oct;60(5):990-4.
- In this paper in the bacterial Ames test we compared the mutagenicity of four aminoazo compounds, previously studied by other researchers and used for activation of rat liver enzymes, with the carcinogenicity in the rat liver. It was found that in the Ames test they have mutagenic activity, however,
- PMID 26591610
- Development and validation of ultra-high performance supercritical fluid chromatography method for determination of illegal dyes and comparison to ultra-high performance liquid chromatography method.
- Khalikova MA1, Šatínský D2, Solich P2, Nováková L2.
- Analytica chimica acta.Anal Chim Acta.2015 May 18;874:84-96. doi: 10.1016/j.aca.2015.03.003. Epub 2015 Mar 3.
- A novel simple, fast and efficient ultra-high performance supercritical fluid chromatography (UHPSFC) method was developed and validated for the separation and quantitative determination of eleven illegal dyes in chili-containing spices. The method involved a simple ultrasound-assisted liquid extrac
- PMID 25910450
Japanese Journal
- ミャンマーの農作物におけるアフラトキシン汚染の解析
- 長野工業高等専門学校紀要 = Memoirs of Nagano National College of Technology 50, 1-7, 2016-06-30
- NAID 120005821778
- 最近のわが国の地域別肺がん死亡率と栄養・食品摂取状況との関係
★リンクテーブル★
[★]
- 英
- p-dimethylaminoazobenzene, DAB
- 同
- p-ジメチルアミノアゾベンゼン, 4-ジメチルアミノアゾベンゼン 4-dimethylaminoazobenzene、バターイエロー butter yellow、メチルイエロー methyl yellow
- 関
- アゾ色素発癌
[★]
- 英
- butter yellow
- 関
- パラジメチルアミノアゾベンゼン
[★]
- 関
- xanthic、xantho
[★]