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Synonym: 2-
CAS Number: 98-00-0
Empirical Formula (Hill Notation): C5H6O2
Molecular Weight: 98.10
Beilstein Registry Number: 106291
EC Number: 202-626-1
MDL number: MFCD00003252
PubChem Substance ID: 24894803![]()
| Related Categories | Building Blocks, Furans, Heterocyclic Building Blocks |
| vapor density | 3.4 (vs air) |
| vapor pressure | 0.5 mmHg ( 20 °C) |
| 1 mmHg ( 32 °C) | |
| 5.5 mmHg ( 55 °C) | |
| assay | 98% |
| autoignition temp. | 915 °F |
| expl. lim. | 16.3 % |
| refractive index | n |
| bp | 170 °C(lit.) |
| mp | −29 °C(lit.) |
| density | 1.135 g/mL at 25 °C(lit.) |
1 kg in glass btl
25 g in glass btl
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| Symbol | ![]() GHS06, GHS08 |
| Signal word | Danger |
| Hazard statements | H302-H312-H319-H331-H335-H351-H373 |
| Precautionary statements | P261-P280-P305 + P351 + P338-P311 |
| Personal Protective Equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
| Hazard Codes | Xn |
| Risk Statements | 20/21/22 |
| RIDADR | UN 2874 6.1/PG 3 |
| WGK Germany | 1 |
| RTECS | LU9100000 |
| Flash Point(F) | 149 °F |
| Flash Point(C) | 65 °C |
Merck 14,4305
Beil. 17,V,3,338
Fieser 1,408
Aldrich MSDS 1, 983:D / Arctander, 1416 / Corp MSDS 1 (1), 1754:B / FT-IR 2 (3), 3438:D / FT-IR 1 (2), 581:C / FT-NMR 1 (3), 18:A / Fenaroli (284) / IR-Spectra (3), 1200:H / IR-Spectra (2), 1046:D / NMR-Reference 2 (2), 455:C / RegBook 1 (2), 2319:K / RegBook 16 (2), 2319:K / Sax 6, 1463 / Structure Index 1, 364:C:1 / Vapor Phase 3, 1453:A
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