8.22011

Dehydroacetic acid

for synthesis

• 동의어(들): Dehydroacetic acid, 3-Acetyl-3,4-dihydro-6-methyl-2H-pyran-2,4-dione
• 실험식(Hill 표기법): C₈H₈O₄
• CAS Number: 520-45-6
• Molecular Weight: 168.15
• MDL number: MFCD00066709
• UNSPSC 코드: 12352115
• EC 인덱스 번호: 208-293-9

속성

• vapor pressure: 0.001 hPa ( 20 °C)
• Quality Level: 200
• 분석: ≥99.0% (acidimetric)
• 형태: powder
• autoignition temp.: 336 °C
• 효능: 1000 mg/kg LD₅₀, oral (Rat)
• pH: 4 (20 °C, 2 g/L in H₂O)
• bp: 270 °C/1013 hPa
• mp: 109-111 °C
• 전이 온도: flash point 157 °C
• 벌크 밀도: 700 kg/m³
• 저장 온도: 2-30°C
• InChI: 1S/C8H8O4/c1-4-3-6(10)7(5(2)9)8(11)12-4/h3,7H,1-2H3
• InChI key: PGRHXDWITVMQBC-UHFFFAOYSA-N

설명

분석 메모

Assay (acidimetric): ≥ 99.0 %
Melting range (lower value): ≥ 109 °C
Melting range (upper value): ≤ 112 °C
Identity (IR): passes test

안전성 정보

• 픽토그램: GHS07
• 신호어: Warning
• 유해 및 위험 성명서: H302
• 예방조치 성명서: P264 - P270 - P301 + P312 - P501
• Hazard Classifications: Acute Tox. 4 Oral
• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 1
• Flash Point (°F): 314.6 °F
• Flash Point (°C): 157 °C