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2,4-Dichloropyrimidine
CAS: 3934-20-1
Molecular Formula: C4H2Cl2N2
Description
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2,4-Dichloropyrimidine-Introduction
3934-20-1 – Names and Identifiers
|
Name |
2,4-Dichloropyrimidine |
|
Synonyms |
NSC 49119 |
|
CAS |
3934-20-1 |
|
EINECS |
223-508-6 |
|
InChI |
InChI=1/C4H2Cl2N2/c5-3-1-2-7-4(6)8-3/h1-2H |
|
InChIKey |
BTTNYQZNBZNDOR-UHFFFAOYSA-N |
3934-20-1 – Physico-chemical Properties
|
Molecular Formula |
C4H2Cl2N2 |
|
Molar Mass |
148.98 |
|
Density |
1.6445 (rough estimate) |
|
Melting Point |
57-61 °C (lit.) |
|
Boling Point |
101 °C/23 mmHg (lit.) |
|
Flash Point |
101°C/23mm |
|
Water Solubility |
Soluble in water (partly), methanol, chloroform, and ethyl acetate. |
|
Solubility |
Chloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly) |
|
Vapor Presure |
0.298mmHg at 25°C |
|
Appearance |
White solid |
|
Color |
White to yellow to beige or grayish |
|
BRN |
110911 |
|
pKa |
-2.84±0.20(Predicted) |
|
Storage Condition |
Keep in dark place,Sealed in dry,Room Temperature |
|
Sensitive |
Moisture Sensitive |
|
Refractive Index |
1.6300 (estimate) |
|
MDL |
MFCD00006061 |
|
Physical and Chemical Properties |
Melting point 57-62°C |
3934-20-1 – Risk and Safety
|
Hazard Symbols |
Xi – Irritant |
|
Risk Codes |
36/37/38 – Irritating to eyes, respiratory system and skin. |
|
Safety Description |
S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
|
UN IDs |
1759 |
|
WGK Germany |
3 |
|
TSCA |
Yes |
|
HS Code |
29335990 |
|
Hazard Class |
8 |
|
Packing Group |
III |
3934-20-1 – Reference Information
|
NIST chemical information |
|
|
EPA chemical information |
Information provided by: ofmpub.epa.gov (external link) |
|
use |
for the production of drug arabinoside hydrochloride. |
|
Production method |
is obtained by chlorination of uracil. Add uracil, phosphorus oxychloride and dimethylaniline to the reaction pot, heat to 130 ℃, reflux for about 45min, cool slightly, put into crushed ice, I .e. precipitate purple solid, filter while hot and insoluble, wash with ice water, dry in vacuum to obtain purple-like crude, decolorize and recrystallize with petroleum ether (boiling range 60-90 ℃) to obtain 2, 4-dichloropyrimidine. |
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