| 货号 | 品牌 | 产品名称 | 规格 | 包装、参考价格 | |
| D836560 | MACKLIN | 3,4-二乙氧基-3-环丁烯-1,2-二酮 | 98% | 30元/1g; 86元/5g; 422元/25g; 1682元/100g; 6900元/500g; | 咨询 |
储存：2~8 °C,密封,干燥 状态：无色到黄色液体或固体 |
| D3253 | TCI | 3,4-Diethoxy-3-cyclobutene-1,2-dione | >98.0%(GC) | 1340元/5G; 3625元/25G; | 咨询 |
基本信息 | 纯度/分析方法 | >98.0%(GC) | | 分子式/分子量 | C8H10O4 = 170.16 | | 外观与形状(20℃) | 液体 | | 储存温度 | 0-10℃ | | 储存在惰性气体下 | 存放于惰性气体之中 | | 应避免的情况 | 湿气 (分解),加热 | | Reaxys-RN | 640626 | | PubChem物质ID | 87558054 |
技术规格 | Appearance | Colorless to Orange to Green clear liquid | | Purity(GC) | min. 98.0 % |
物性(参考值) | 沸点 | 95 ℃/0.1 mmHg | | 比重 | 1.16 | | 折射率 | 1.51 |
安全信息 | 图形或危害标志 |  | | 信号词 | 危险 | | 危险性说明 | H315 : 造成皮肤刺激。
H319 : 造成严重眼刺激。
H317 : 可能造成皮肤过敏反应。
H334 : 吸入可能导致过敏或哮喘病症状或呼吸困难。
| | 防范说明 | P501 : 将内装物/容器送到批准的废物处理厂处理。
P261 : 避免吸入粉尘/烟/气体/烟雾/蒸气/喷雾。
P272 : 受沾染的工作服不得带出工作场地。
P264 : 作业后彻底清洗皮肤。
P280 : 戴防护手套/戴防护眼罩/戴防护面具。
P284 : [在通风不足的情况下]戴呼吸防护装置。
P302 + P352 : 如皮肤沾染：用水充分清洗。
P342 + P311 : 如有呼吸系统病症：呼叫急救中心/医生。
P337 + P313 : 如仍觉眼刺激：求医/就诊。
P305 + P351 + P338 : 如进入眼睛：用水小心冲洗几分钟。如戴隐形眼镜并可方便地取出，取出隐形眼镜。继续冲洗。
P362+P364 : 脱掉沾污的衣服，清洗后方可重新使用。
P304 + P340 : 如误吸入：将人转移到空气新鲜处，保持呼吸舒适体位。
P333 + P313 : 如发生皮肤刺激或皮疹：求医/就诊。
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相关法规 |
| 108051 | J&K | 3,4-Diethoxy-3-cyclobutene-1,2-dione | 98% | 218元/1G; 710元/5G; 1810元/25G; | 咨询 |
基本信息 | 分子式 | C8H10O4 | | 分子量 | 170.16 | | 沸点 | 95 | | 闪点 | 110 | | 密度 | 1.15 | | 折光率(n20D) | 1.5090 | | MDL编码 | MFCD00001333 | | Beilstein | 640626 |
安全信息 | 图形或危害标志 |  | | 提示语 | Warning | | 危险说明 | H315
H317
H319
H335 | | 防范说明 | P261
P280
P305+P351+P338 | | WGK | 3 | | RTECS | GU1772466 | | TSCA | 否 |
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| A19248 | Alfa Aesar | 3,4-Diethoxy-3-cyclobutene-1,2-dione | 98% | 655元/1g; 3272元/5g; 13612元/25g; | 咨询 |
基本信息 MDL
MFCD00001333 分子式
C8H10O4 分子量
170.16 沸点
95°/0.1mm 闪点
>110°(230°F) 密度
1.162 折射率
1.5090 灵敏度
Keep Cold. 形态
Liquid Beilstein
640626 GHS危害和防范说明 GHS符号
Hazard Statements
H315-H319-H334-H317-H335
Causes skin irritation.Causes serious eye irritation.May cause allergy or asthma symptoms or breathing difficulties if inhaled.May cause an allergic skin reaction.May cause respiratory irritation. Precautionary Statements
P284-P261-P280a-P305+P351+P338-P405-P501a
Wear respiratory protection.Avoid breathing dust/fume/gas/mist/vapours/spray.Wear protective gloves and eye/face protection.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.Store locked up.Dispose of contents/container in accordance with local/regional/national/international regulations. 安全信息 危险类别
36/37/38-42/43
Irritating to eyes, respiratory system and skin.May cause sensitization by inhalation and skin contact. 安全等级
23-24-26-37-45
Do not breathe gas/fumes/vapour/spray (appropriate wording to be specified by the manufacturer).Avoid contact with skin.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). 欧盟危险品标志
 RTECS
GU1772466 TSCA
否 |
| C30508 | Alfa Aesar | 3,4-Diethoxy-3-cyclobutene-1,2-dione | 98% | 2406元/5g; 12811元/25g; | 咨询 |
基本信息 Ref#
30508 MDL
1333 分子式
C8 H10 O4 分子量
170.16 闪点
110 密度
1.15 形态
Liquid |
| 310778 | Sigma-Aldrich | 3,4-Diethoxy-3-cyclobutene-1,2-dione | 98% | 1158.42元/5 G; | 咨询 |
产品说明 一般描述 3,4-二乙氧基-3-环丁烯-1,2-二酮(方酸二乙酯)与糖胺(通过还原低聚糖形成)的反应已被研究。所形成的衍生物与氨基官能化的脂质、固体或蛋白相连。 应用 3,4-二乙氧基-3-环丁烯-1,2-二酮可用作合成呋喃酮和醌的起始材料。它会经过胺和不饱和有机硅烷的乙氧基取代。 包装 5 g in glass bottle 基本信息 | 线性分子式 | (C2H5O)2C4(=O)2 | | 分子量 | 170.16 | | Beilstein | 640626 | | MDL编号 | MFCD00001333 | | PubChem化学物质编号 | 24858814 | | NACRES | NA.22 |
产品性质 | 质量水平 | 100 | | 测定 | 98% | | 折射率 | n20/D 1.509 (lit.) | | bp | 95 ℃/0.1 mmHg (lit.) | | 密度 | 1.15 g/mL at 25 ℃ (lit.) | | SMILES string | CCOC1=C(OCC)C(=O)C1=O | | InChI | 1S/C8H10O4/c1-3-11-7-5(9)6(10)8(7)12-4-2/h3-4H2,1-2H3 | | InChI key | DFSFLZCLKYZYRD-UHFFFAOYSA-N |
安全信息 | 象形图 | | | 警示用语： | Danger | | 危险声明 | H315 - H317 - H319 - H334 - H335 | | 预防措施声明 | P280 - P302 + P352 - P305 + P351 + P338 | | 危险分类 | Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3 | | 靶器官 | Respiratory system | | 储存分类代码 | 10 - Combustible liquids | | WGK | WGK 3 | | 闪点(F) | 230.0 °F - closed cup | | 闪点(C) | 110 ℃ - closed cup | | 个人防护装备 | Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter |
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| 069067 | Fluorochem | 3,4-Diethoxycyclobut-3-ene-1,2-dione | 97% | 330元/1g; 528元/5g; 858元/10g; 3608元/100g; | 咨询 |
基本信息 | CAS Number | 5231-87-8 | | MDL Number | MFCD00001333 | | Boiling Point | 95 ℃ | | Density | 1.15 |
安全信息 | 图形或危害标志 | | | 危险性说明 | H315: Causes skin irritation.
H317: May cause an allergic skin reaction.
H319: Causes serious eye irritation.
H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled.
H335: May cause respiratory irritation.
| | 防范说明 | P233: Keep container tightly closed.
P260: Do not breathe .
P261: Avoid breathing .
P264: Wash hands thoroughly after handling.
P271: Use only outdoors or in a well-ventilated area.
P272: Contaminated work clothing should not be allowed out of the workplace.
P280: Wear .
P285: In case of inadequate ventilation wear respiratory protection.
P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
P304: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing..
P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P304 + P341: IF INHALED: If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P312: Call a POISON CENTER or doctor/physician if you feel unwell.
P321: Specific treatment (see relevant procedures. on this label).
P332 + P313: If skin irritation occurs: Get medical advice/ attention.
P333 + P313: If skin irritation or rash occurs: Get medical advice/attention.
P337 + P313: If eye irritation persists: Get medical advice/attention.
P340: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P342 + P311: If experiencing respiratory symptoms: Call a POISON CENTER or doctor/physician.
P362: Take off contaminated clothing and wash before reuse.
P363: Wash contaminated clothing before reuse.
P403: Store in a well-ventilated place.
P403 + P233: Store in a well-ventilated place. Keep container tightly closed.
P405: Store locked up.
P501: Dispose of contents/container to in accordance with local regulation .
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