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ChemicalBook > CAS DataBase List > 5-Ethyluracil

5-Ethyluracil

Application
Product Name
5-Ethyluracil
CAS No.
4212-49-1
Chemical Name
5-Ethyluracil
Synonyms
5-ethylpyriMidine-2,4(1H,3H)-dione;HOMOTHYMINE;5-ETHYLURACIL;AURORA KA-580;5-ethvluracil;5-Ethyluracil>5-Ethyluracil, 98+%;5-Ethyluracil USP/EP/BP;DIHYDROXY-5-ETHYLPYRIMIDINE;5-Ethyl-1H-pyrimidine-2,4-dione
CBNumber
CB2736785
Molecular Formula
C6H8N2O2
Formula Weight
140.14
MOL File
4212-49-1.mol
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5-Ethyluracil Property

Melting point:
>300 °C(lit.)
Density 
1.164±0.06 g/cm3(Predicted)
storage temp. 
Sealed in dry,Room Temperature
form 
powder to crystal
pka
9.21±0.10(Predicted)
color 
White to Light yellow
λmax
265nm(EtOH)(lit.)
BRN 
119494
InChI
InChI=1S/C6H8N2O2/c1-2-4-3-7-6(10)8-5(4)9/h3H,2H2,1H3,(H2,7,8,9,10)
InChIKey
RHIULBJJKFDJPR-UHFFFAOYSA-N
SMILES
C1(=O)NC=C(CC)C(=O)N1
CAS DataBase Reference
4212-49-1(CAS DataBase Reference)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36
WGK Germany 
3
HS Code 
29335990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P321Specific treatment (see … on this label).

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

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N-Bromosuccinimide Price

TCI Chemical
Product number
E0807
Product name
5-Ethyluracil
Purity
>98.0%(HPLC)(T)
Packaging
1g
Price
$23
Updated
2025/07/31
TCI Chemical
Product number
E0807
Product name
5-Ethyluracil
Purity
>98.0%(HPLC)(T)
Packaging
5g
Price
$63
Updated
2025/07/31
TRC
Product number
E818270
Product name
5-Ethyluracil
Packaging
500mg
Price
$45
Updated
2021/12/16
AK Scientific
Product number
L819
Product name
5-Ethyluracil
Packaging
1kg
Price
$350
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
NUC0000636
Product name
5-ETHYLURACIL
Purity
95.00%
Packaging
1MG
Price
$400.25
Updated
2021/12/16
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5-Ethyluracil Chemical Properties,Usage,Production

Application

5-Ethyluracil is a pharmaceutical intermediate and an organic synthesis intermediate that can be used in laboratory research and development processes as well as in chemical and pharmaceutical synthesis.

Chemical Properties

Solid

Synthesis

36873-42-4

57-13-6

4212-49-1

Urea (19.39 g, 0.32 mol, JT Baker) was slowly added to fuming sulfuric acid (26-29.5% free SO3, 135 mL, 2.65 mol, Aldrich) under cooling in an ice-water bath over a period of 20 min, and the reaction temperature was controlled to be maintained at 8 to 15°C. After stirring for 30 min, ethyl 2-formylbutyrate was added dropwise over 18 min ( 46.55 g, 0.32 mol, from Example LC), keeping the reaction temperature constant. After continued stirring for 30 minutes, a second portion of urea (15.07 g, 0.25 mol) was added over 10 minutes at the same temperature. Subsequently, the reaction mixture was stirred at room temperature for 65 hours and then heated at 90-100°C for 2 hours (gas was observed to escape, the reaction was exothermic, and the temperature rose to 110°C). Upon completion of the reaction, the mixture was cooled to 30 °C using an ice water bath and ice (270 g) was slowly added to ensure that the temperature did not exceed 35 °C. The mixture was further cooled to 5 °C and stirred for 20 min. The precipitated solid was collected by filtration, washed sequentially with cold water, hexane and ether and dried by filtration to give 5-ethyluracil in 38.85 g (85.9%) yield.

References

[1] Patent: WO2004/41821, 2004, A1. Location in patent: Page 26

5-Ethyluracil Preparation Products And Raw materials

Raw materials

Preparation Products

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5-Ethyluracil Suppliers

J & K SCIENTIFIC LTD.
Tel
18210857532; 18210857532
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
4006356688 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
3B Pharmachem (Wuhan) International Co.,Ltd.
Tel
821-50328103-801 18930552037
Fax
86-21-50328109
Email
3bsc@sina.com
Country
China
ProdList
15838
Advantage
69
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30123
Advantage
84
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44801
Advantage
61
Nanjing Chemlin Chemical Co., Ltd
Tel
025-83697070
Fax
+86-25-83453306
Email
info@chemlin.com.cn
Country
China
ProdList
15883
Advantage
64
Shanghai Hanhong Scientific Co.,Ltd.
Tel
021-54306202 13764082696
Email
info@hanhongsci.com
Country
China
ProdList
42934
Advantage
64
Tianjin heowns Biochemical Technology Co., Ltd.
Tel
400 638 7771
Email
sales@heowns.com
Country
China
ProdList
14435
Advantage
57
ZhengZhou HuaWen Chemical Co.Ltd
Tel
0370-2785118 17550508557
Fax
QQ:3470079902
Email
675141927@qq.com
Country
China
ProdList
3199
Advantage
55
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View Lastest Price from 5-Ethyluracil manufacturers

HANGZHOU HAILAN CHEMICAL CO.,LTD.
Product
5-Ethyluracil 4212-49-1
Price
US $0.00/kg
Min. Order
1kg
Purity
99%min
Supply Ability
20tons
Release date
2025-08-27
Hebei Chuanghai Biotechnology Co., Ltd
Product
5-Ethyluracil 4212-49-1
Price
US $1.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
10 mt
Release date
2025-03-14
Wuhan Quanjinci New Material Co.,Ltd.
Product
5-ethyluracil 4212-49-1
Price
US $25.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
100tons
Release date
2023-11-09

4212-49-1, 5-EthyluracilRelated Search:


  • 5-ethvluracil
  • 5-Ethyluracil, 98+%
  • 2,4-Dihydroxy-5-ethylpyrimidine, Homothymine
  • 5-ethylpyriMidine-2,4(1H,3H)-dione
  • HOMOTHYMINE
  • AURORA KA-580
  • 5-ETHYLURACIL
  • 2,4-DIHYDROXY-5-ETHYLPYRIMIDINE
  • 5-Ethyl-1H-pyrimidine-2,4-dione
  • 2,4(1H,3H)-Pyrimidinedione, 5-ethyl- (9CI)
  • DIHYDROXY-5-ETHYLPYRIMIDINE
  • 5-Ethyluracil&gt
  • 2,4(1H,3H)-Pyrimidinedione, 5-ethyl-
  • 5-Ethyluracil USP/EP/BP
  • 4212-49-1
  • Nucleoside Analogs
  • Nucleosides, Nucleotides, Oligonucleotides
  • Biochemicals and Reagents
  • BioChemical
  • Heterocycles
  • PYRIMIDINE