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3,4-Dihydroxy-3-cyclobutene-1,2-dione 3,4-二羟基-3-环丁烯-1,2-二酮

规格: 98%

CAS: 2892-51-5

产品编号: H58242

MDL: MFCD00001334

品牌: INFI

Chemical Name	3,4-Dihydroxy-3-cyclobutene-1,2-dione
CAS Number	2892-51-5
Alfabeta Name	DIHYDROXYCYCLOBUTENEDIONE 34312-----,,
MDL Number	MFCD00001334
Synonym	3,4-Dihydroxy-3-cyclobutene-1,2-dione {LY} 3,4-Dihydroxy-3-cyclobutene-1,2-dione squaric acid squaric acid, dipotassium salt squaric acid, disilver (+1) salt squaric acid, disodium salt squaric acid, monopotassium salt squaric acid, monopotassium salt monohydrate squaric acid, nickel (+2), (1:1) salt dihydrate {} {LY} 3,4-Dihydroxy-3-cyclobutene-1,2-dione {} {} {LY} 3,4-Dihydroxy-3-cyclobutene-1,2-dione {} {} {} {LY} 3,4-Dihydroxy-3-cyclobutene-1,2-dione {} {} {} {} {LY} 3,4-Dihydroxy-3-cyclobutene-1,2-dione {} {} {} {} {} {LY} 3,4-Dihydroxy-3-cyclobutene-1,2-dione {} {} {} {} {} {} {LY} 3,4-Dihydroxy-3-cyclobutene-1,2-dione {} {} {} {} {} {} {} {LY} 3,4-Dihydroxy-3-cyclobutene-1,2-dione {} {} {} {} {} {} {} {} {LY} 3,4-Dihydroxy-3-cyclobutene-1,2-dione {} {} {} {} {} {} {} {} {} {LY} 3,4-Dihydroxy-3-cyclobutene-1,2-dione {} {} {} {} {} {} {} {} {} {} {LY} 3,4-Dihydroxy-3-cyclobutene-1,2-dion
EC Number	220-761-4
Beilstein Registry Number	774275
PubChem Substance ID	17913
Reaxys-RN	774275
Merck Number	8769
Chemical Name Translation	3,4-二羟基-3-环丁烯-1,2-二酮
Wiswesser Line Notation	L4VVTJ CQ DQ
LabNetwork Molecule ID	LN00170294
InChI	InChI=1S/C4H2O4/c5-1-2(6)4(8)3(1)7/h5-6H
Canonical SMILES	O=C1C(C(O)=C1O)=O

GHS Symbol

TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Subcutaneous
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 368 mg/kg/92W-I
TOXIC EFFECTS :
   Tumorigenic - equivocal tumorigenic agent by RTECS criteria
   Tumorigenic - tumors at site of application
REFERENCE :
   JNCIAM Journal of the National Cancer Institute.  (Washington, DC)  V.1-60,
   1940-78.  For publisher information, see JJIND8.  Volume(issue)/page/year:
   46,143,1971

Warnings	CORROSIVE
WGK Germany	3
Hazard statements
H315 Causes skin irritation 会刺激皮肤 H317 May cause an allergic skin reaction 可能导致皮肤过敏 H319 Causes serious eye irritation 严重刺激眼睛 H335 May cause respiratory irritation 可能导致呼吸道刺激
Personal Protective Equipment	dust mask type N95 (US), Eyeshields, Faceshields, Gloves
Hazard Codes	Xi
RTECS	GU1800000
Precautionary statements
P261 Avoid breathing dust/fume/gas/mist/vapours/spray. 避免吸入粉尘/烟/气体/烟雾/蒸汽/喷雾。 P264 Wash hands thoroughly after handling. 处理后要彻底洗净双手。 P264+P265 P271 Use only outdoors or in a well-ventilated area.? 只能在室外或通风良好的地方使用。 P272 Contaminated work clothing should not be allowed out of the workplace. 污染的工作服不得带出工作场所。 P280 Wear protective gloves/protective clothing/eye protection/face protection. 戴防护手套/防护服/眼睛的保护物/面部保护物。 P302+P350 P302+P352 P302+P352+P332+P313+P362+P364 P304+P340 P305+P351+P338 P305+P351+P338+P337+P313 P312 Call a POISON CENTER or doctor/physician if you feel unwell. 如果你感觉不适，呼叫解毒中心或医生/医师。 P319 P321 Specific treatment (see … on this label). 具体治疗（见本标签上的）。 P332+P313 P332+P317 P333+P313 P333+P317 P337+P313 P337+P317 P362 Take off contaminated clothing and wash before reuse. 脱掉污染的衣服，清洗后方可重新使用 P362+P364 P363 Wash contaminated clothing before reuse. 被污染的衣服洗净后方可重新使用。 P403+P233 P405 Store locked up. 上锁保管。 P501 Dispose of contents/container to..… 处理内容物/容器.....
Signal word	Warning
Safety Statements
S20 When using do not eat or drink 使用时，不得进食，饮水； S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 眼睛接触后，立即用大量水冲洗并征求医生意见； S36 Wear suitable protective clothing 穿戴适当的防护服； S36/37/39 Wear suitable protective clothing, gloves and eye/face protection 穿戴适当的防护服、手套和眼睛/面保护； S45 In case of accident or if you feel unwell seek medical advice immediately (show the label where possible) 发生事故时或感觉不适时，立即求医（可能时出示标签）；
Risk Statements
R36/37/38 Irritating to eyes, respiratory system and skin 对眼睛、呼吸系统和皮肤有刺激性 R43 May cause sensitisation by skin contact 皮肤接触会产生过敏反应
UN Number	UN3261 3261
Packing Group	II
Hazard Class	8
Storage condition	Store at room temperature {LY} Store at room temperature {} {LY} Store at room temperature {} {} {LY} Store at room temperature {} {} {} {LY} Store at room temperature {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Store at room temperature {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {}

可作为酰化试剂，与富电活化芳环进行酰化反应。与含活泼双键、活泼甲基反应，生成具特殊性能的新化合物。用作合成有机光导体、液晶显示材料、激光书写记录材料及静电照相光受体材料的中间体。

{ALD} Merck: 14,8769

Beilstein: 8,IV,2701

{uni_hamburg} Short: III/31a

{ALD} Merck: 14,8769

{ALF} For reviews of squaric acid and its derivatives, see: Synthesis, 1, 649, 869 (1978); 961 (1980). See also: J. Chem. Soc., Perkin 1, 263 (1993).

{ALF} Interesting dibasic acid, readily forming salts, acid chloride, esters, amides, etc. Esters of squaric acid have been used to synthesize chiral bioisosteres for the amino acid functionality: J. Org. Chem., 57, 6896 (1992).

2892-51-5 H58242 3,4-Dihydroxy-3-cyclobutene-1,2-dione 3,4-二羟基-3-环丁烯-1,2-二酮

化学属性

Mol. Formula	C4H2O4
Mol. Weight	114.05628
Melting Point	>300°C
Density	2.415
Flash Point	190°(374°F)
TSCA	Yes
Solubility	20 G/L (30 ºC)
pH	:A
Boiling Point	250.96 °C at 760 mmHg

*以上化合物性质及应用等信息仅供参考

手性催化剂及配体

合成砌块

医药中间体

3,4-Dihydroxy-3-cyclobutene-1,2-dione 3,4-二羟基-3-环丁烯-1,2-二酮

规格: 98%

化学属性

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