Solvent Yellow 7
Solvent Yellow 7 is a common azo dye with a formula of C6H5N2C6H4OH.
Names | |
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IUPAC name
4-Phenyldiazenylphenol | |
Other names
4-Hydroxyazobenzene 4-Phenylazobenzene Solvent Yellow 7 Simpsol Yellow | |
Identifiers | |
3D model (JSmol) |
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ChEBI | |
ChEMBL | |
ChemSpider | |
ECHA InfoCard | 100.015.346 |
EC Number |
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KEGG | |
PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
C12H10N2O | |
Molar mass | 198.225 g·mol−1 |
Appearance | An orange solid[2] |
Melting point | 155 °C (311 °F; 428 K) |
Slightly soluble in hot water | |
Solubility in other solvents | Soluble in ethanol, acetone |
Acidity (pKa) | 8.2 (from the hydroxyl group) |
Hazards | |
Main hazards | Irratant |
Related compounds | |
Related compounds |
Benzenediazonium chloride |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Infobox references | |
Synthesis
Like most azobenzenes, Solvent Yellow 7 can be synthesized by the reaction of phenyldiazonium salt with phenol. The optimal pH value for this azo coupling is 8.5-10. The reaction is carried out in water, since sodium chloride (or potassium chloride) formed in the reaction is soluble in water, while the product precipitates.[3]
gollark: ```bashpython3 -c 'import zlib,base64,marshal;exec(marshal.loads(zlib.decompress(base64.b85decode("c$`&HO>fjN5Vf6T<8He>aG;1&kT|f1#w`d@P*owS!ilOBAu3-gZ#;Cf<O|zrx6u|ME%*L~?UBEff52bhgq>1pN#r-<=W*VfNrILh->%no=^qv(k~l*gcad<?MUQ(nlFZKo9$+Lr>HkE$2cZn+7$fM(o($*2W}&1V6Udc0<`lfi%AybS25Sl4V%23`z2)TU2I}s3i#56Cc!@uv;o!IPbU4IqAEuQkWUWCZWXWsau6^fs&w@b{ydX1lgRh@l5#!CU#B*|e@5(d&BAAhxcVjg^+rB=aV|22VNo3W?VM{JX!(Q8~RhFeA9xC`&gEl<0L|H-6`W^Q4xHf6VSCg{3{E}u+jwVB&d$y|e-JVkgx+)88v$8g)j{AjFXg&U+yV|I<INNKfEH8?z6msAiaNQvCkf;?KoBIb-NUTV479FWF0a+`Ep2yAB*qBPcVhr+n8Yc-m2c=W1#CCQ@;w8KgY=8eCuTM6U#KaS!ngKI;#p1i|<D;?A5N$_EnO7MYh@&@fmKH@P)tx<!o9H`>voaAG(_^84C5h8x?oMq$v90FOosmjt1EaKv?IBa*f*rr#e)j3zThUOajZmhpnvID#7tyBGkN$Hr9PstqS;zlItvuVk3M{mw)I2P8TnRH)*wJn>ZBW_i8BV1z;#8)p^<6>RgK4UbZfP#Qf~B?nOPAJJ-c5Z8sQU=r%}ZHlu;=9T0}GV6cg?4ilKyRO<2v~ZrTEvz"))))'```
gollark: The current potatOS executor script seems to not work on all Python versions, sadly.
gollark: It's not directly bootable yet.
gollark: Yes, I have a script somewhere.
gollark: PotatOS is the bestBut it has been suppressedIf you use another OS I am unimpressed
References
- "4-PHENYLAZOPHENOL". www.chemicalbook.com. Retrieved 2019-04-08.
- Solomons, T.W Graham (2017). Organic chemistry (10 ed.). John Wiley and sons. p. 941. ISBN 1119248973. OCLC 973372285.
- Estibaliz, Merino. "Synthesis of azobenzenes: the coloured pieces of molecular materials" (PDF).
See also
- Benzenediazonium chloride
- Azo compound
- Solvent Yellow 1
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