ChemicalBook CAS DataBase List 84-51-5

84-51-5

Name	2-Ethyl anthraquinone
CAS	84-51-5
EINECS(EC#)	201-535-4
Molecular Formula	C16H12O2
MDL Number	MFCD00001237
Molecular Weight	236.27
MOL File	84-51-5.mol

Synonyms

2-Ethyl-9,10-anthracenedione 2-ETHYLANTHRAQUINONE 2-ETHYL ANTHROQUINONE TIMTEC-BB SBB008818 10-Anthracenedione,2-ethyl-9 2-ethyl-10-anthracenedione 2-Ethyl-9,10-anthraquinone 2-Ethylanthra-9,10-quinone 2-ethyl-anthraquinon 9,10-Anthracenedione,2-ethyl- Anthraquinone, 2-ethyl- beta-ethylanthraquinone Ethylanthraquinone USAF so-1 usafso-1 Ethylanthraquinone,98% 2-ETHYLANTHRAQUINONE, 97+% 2-Ethylanthrachinon SYNCUREEHA2-ETHYLHEXYL-4-(DIMETHYLAMINO)BENZOATE b-Ethylanthraquinone

Chemical Properties

Appearance	white or yellowish crystals or powder
Melting point	108-111 °C (lit.)
Boiling point	180-190°C
bulk density	650kg/m3
density	1.27 g/cm3 (21℃)
vapor pressure	<1 hPa (25 °C)
refractive index	1.6290 (estimate)
Fp	>210°C
storage temp.	Store below +30°C.
solubility	0.00025g/l
form	powder to crystal
color	Light yellow to Amber to Dark green
Stability:	Stable. Combustible. Incompatible with strong oxidizing agents.
Water Solubility	Insoluble in water.
BRN	1969873
Henry's Law Constant	2.6×10¹ mol/(m³Pa) at 25℃, Abraham and Jr. (2019)
InChI	1S/C16H12O2/c1-2-10-7-8-13-14(9-10)16(18)12-6-4-3-5-11(12)15(13)17/h3-9H,2H2,1H3
InChIKey	SJEBAWHUJDUKQK-UHFFFAOYSA-N
SMILES	CCc1ccc2C(=O)c3ccccc3C(=O)c2c1
LogP	4.6
Uses	Synthesis, especially of hydrogen peroxide. less more
CAS DataBase Reference	84-51-5(CAS DataBase Reference)
NIST Chemistry Reference	9,10-Anthracenedione, 2-ethyl-(84-51-5)
EPA Substance Registry System	84-51-5(EPA Substance)

Safety Data

Symbol(GHS)	GHS08,GHS09
Signal word	Warning
Hazard statements	H373-H410
Precautionary statements	P260-P273-P314-P391-P501
Hazard Codes	Xn
Risk Statements	R22:Harmful if swallowed. R36/37/38:Irritating to eyes, respiratory system and skin . less more
Safety Statements	S24/25:Avoid contact with skin and eyes . S36:Wear suitable protective clothing . S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . less more
RIDADR	UN 3077 9 / PGIII
WGK Germany	1
RTECS	CB0525000
Autoignition Temperature	485 °C
TSCA	Yes
REACH Registrations	Active
HS Code	29146990
Storage Class	11 - Combustible Solids
Hazard Classifications	Aquatic Acute 1 Aquatic Chronic 1 STOT RE 2 Oral
Toxicity	LD50 orally in Rabbit: > 6400 mg/kg less more

Raw materials And Preparation Products

Hazard Information

Chemical Properties

white or yellowish crystals or powder

General Description

This certified reference material (CRM) is produced and certified in accordance with ISO/IEC 17025 and ISO 17034. This CRM is traceable to primary material from an NMI, e.g. NIST or NMIJ.
Certified content by quantitative NMR incl. uncertainty and expiry date are given on the certificate.
Download your certificate at: http://www.sigma-aldrich.com.

Flammability and Explosibility

Nonflammable

Synthesis

1151-14-0

84-51-5

General procedure for the synthesis of 2-ethylanthraquinone from 2-(4-ethylbenzoyl)benzoic acid: (2) 2-(4-ethylbenzoyl)benzoic acid prepared as described above and concentrated sulfuric acid were sequentially passed through a piping system comprising a T-type mixer, a reactor A, a Y-type mixer, a reactor B and a separator. In this system, 2-(4-ethylbenzoyl)benzoic acid enters the T-mixer at 180° C., while concentrated sulfuric acid enters the T-mixer at 50° C. The mass-volume ratio of the two is 1 g:3 mL. The mixing temperature in the T-mixer is 50° C., and the residence time is 35 seconds. Subsequently, the mixture enters reactor A and is reacted at 120°C for 30 minutes. Next, it was passed through a Y-mixer at 40°C and finally into Reactor B where the reaction was completed at 50°C to produce 2-ethyl anthraquinone in 95.5% yield.

References

[1] Patent: CN108101726, 2018, A. Location in patent: Paragraph 0025; 0030; 0035; 0040; 0045; 0050; 0055; 0060
[2] Patent: CN106045838, 2016, A. Location in patent: Paragraph 0038
[3] Patent: CN107954846, 2018, A. Location in patent: Paragraph 0027-0029; 0030-0032; 0036-0041
[4] Patent: CN107879915, 2018, A. Location in patent: Paragraph 0027-0028
[5] Patent: CN106083550, 2016, A

Material Safety Data Sheet(MSDS)

Questions And Answer

Spectrum Detail

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