| 货号 | 品牌 | 产品名称 | 规格 | 包装、参考价格 | 详情 |
| D838121 | MACKLIN | 方酸二正丁酯 | 98 % | 30元/1g; 104元/5g; 510元/25g; 2032元/100g; | 展开 |
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| D2203 | TCI | 3,4-Dibutoxy-3-cyclobutene-1,2-dione | >97.0%(GC) | 605元/5G; 2005元/25G; | 展开 |
基本信息 | 纯度/分析方法 | >97.0%(GC) | | 分子式/分子量 | C12H18O4 = 226.27 | | 外观与形状(20℃) | 液体 | | 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) | | Reaxys-RN | 1968189 | | PubChem物质ID | 87568643 | | MDL编号 | MFCD00037150 |
技术规格 | Appearance | White to Yellow to Green clear liquid | | Purity(GC) | min. 97.0 % |
物性(参考值) 安全信息 | 图形或危害标志 |  | | 信号词 | 警告 | | 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。
| | 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。
P302 + P352 : 如皮肤沾染：用水充分清洗。
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。
P333 + P313 : 如发生皮肤刺激或皮疹：求医/就诊。
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相关法规 |
| 491805 | J&K | 3,4-Dibutoxy-3-cyclobutene-1,2-dione | 98% | 131元/1G; 366元/5G; 1257元/25G; | 展开 |
基本信息 | 分子式 | C12H18O4 | | 分子量 | 226.27 | | 沸点 | 139 | | 闪点 | 113 | | 密度 | 1.047 | | 折光率(n20D) | 1.4940 | | MDL编码 | MFCD00037150 | | Beilstein | 1968189 |
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 | GU1772066 | | TSCA | 否 |
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| A18960 | Alfa Aesar | 3,4-Di-n-butoxy-3-cyclobutene-1,2-dione | 97% | 744元/1g; 1750元/5g; 5808元/25g; | 展开 |
应用
3,4-Dibutoxy-3-cyclobutene-1,2-dione was used in the synthesis of novel semisquarylium dye, useful for highly selective Hg2+ sensing in aqueous media. It was also employed in the synthesis of 3-butoxy-4-(1,3,3-trimethyl-2,3-dihydro-1H-2-indolylidenemethyl)-3-cyclobutene-1,2-dione, intermediate for the synthesis of squaryl dyes. 备注
Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Store away from strong oxidizing agents. 基本信息 MDL
MFCD00037150 分子式
C12H18O4 分子量
226.27 沸点
155-158°/3mm 闪点
>110°(230°F) 密度
1.047 折射率
1.4950 灵敏度
Ambient temperatures. 形态
Liquid 溶解性
Insoluble in water. Beilstein
1968189 GHS危害和防范说明 GHS符号
Hazard Statements
H315-H319
Causes skin irritation.Causes serious eye irritation. Precautionary Statements
P280a-P264-P305+P351+P338-P321-P332+P313-P337+P313
Wear protective gloves and eye/face protection.Wash thoroughly after handling.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.Specific treatment (see label).If skin irritation occurs: Get medical advice/attention.If eye irritation persists: Get medical advice/attention. 安全信息 危险类别
36/38
Irritating to eyes and skin. 安全等级
26-37
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. RTECS
GU1772066 TSCA
否 |
| C13317 | Alfa Aesar | Squaric Acid Dibutyl Ester | 97% | 1103元/1g; 2704元/5g; 11001元/25g; | 展开 |
基本信息 Ref#
13317 MDL
37150 分子式
C12 H18 O4 分子量
226.27 闪点
>110 密度
1.05 |
| 339792 | Sigma-Aldrich | 3,4-Dibutoxy-3-cyclobutene-1,2-dione | 98% | 777.73元/5 G; 3645.33元/25 G; | 展开 |
产品说明 一般描述 3,4-二丁氧基-3-环丁烯-1,2-二酮是方酸的二烷基酯。 应用 3,4-二丁氧基-3-环丁烯-1,2-二酮用于合成新型半方酸染料，可用于在水性介质中进行高选择性Hg2+传感。它也用于合成3-丁氧基-4-(1,3,3-三甲基-2,3-二氢-1H-2-吲哚基亚甲基)-3-环丁烯-1,2-二酮的中间体方酸染料。 包装 5, 25 g in glass bottle 基本信息 | 线性分子式 | [CH3(CH2)3O]2C4(=O)2 | | 分子量 | 226.27 | | MDL编号 | MFCD00037150 | | PubChem化学物质编号 | 24860681 | | NACRES | NA.22 |
产品性质 | 质量水平 | 200 | | 测定 | 98% | | 折射率 | n20/D 1.494 (lit.) | | bp | 139 ℃/0.5 mmHg (lit.) | | 密度 | 1.047 g/mL at 25 ℃ (lit.) | | SMILES string | CCCCOC1=C(OCCCC)C(=O)C1=O | | InChI | 1S/C12H18O4/c1-3-5-7-15-11-9(13)10(14)12(11)16-8-6-4-2/h3-8H2,1-2H3 | | InChI key | XBRWELTXMQSEIN-UHFFFAOYSA-N |
安全信息 | 象形图 | | | 警示用语： | Warning | | 危险声明 | H315 - H317 - H319 - H335 | | 预防措施声明 | P280 - P302 + P352 - P305 + P351 + P338 | | 危险分类 | Eye Irrit. 2 - 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) | 235.4 °F - closed cup | | 闪点(C) | 113 ℃ - closed cup | | 个人防护装备 | Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter |
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| 235674 | Fluorochem | 3,4-Dibutoxycyclobut-3-ene-1,2-dione | 95% | 220元/1g; 440元/5g; 682元/10g; 1628元/25g; | 展开 |
基本信息 | CAS Number | 2892-62-8 | | MDL Number | MFCD00037150 | | Density | 1.05 |
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.
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 .
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.
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.
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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