CAS 110-87-2; 2,3-二氢-4H-吡喃; 2,3-dihydro-pyran

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货号

品牌

产品名称

规格

包装、参考价格

详情

D0555

TCI

3,4-Dihydro-2H-pyran

>97.0%(GC)

120元/25ML; 210元/100ML; 570元/500ML;

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基本信息

纯度/分析方法	>97.0%(GC)
分子式/分子量	C₅H₈O = 84.12
外观与形状(20℃)	液体
Reaxys-RN	103493
PubChem物质ID	87567211
SDBS (AIST Spectral DB)	2119
MDL编号	MFCD00006558

技术规格

Appearance	Colorless to Light yellow clear liquid
Purity(GC)	min. 97.0 %

物性(参考值)

沸点	86 ℃
闪点	-6 ℃
比重	0.93
折射率	1.44

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。 H225 : 高度易燃液体和蒸气。
防范说明	P501 : 将内装物/容器送到批准的废物处理厂处理。 P240 : 容器和装载设备接地/等势联接。 P210 : 远离热源/火花/明火/热表面。禁止吸烟。 P233 : 保持容器密闭。 P243 : 采取防止静电放电的措施。 P241 : 使用防爆的电气/通风/照明设备。 P242 : 只能使用不产生火花的工具。 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。 P370 + P378 : 火灾时：使用干砂、干粉或抗醇泡沫灭火。 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。 P303 + P361 + P353 : 如皮肤(或头发)沾染：立即脱掉所有沾污的衣物。用水清洗皮肤/淋浴。 P332 + P313 : 如发生皮肤刺激：求医/就诊。 P403 + P235 : 存放在通风良好的地方。保持低温。

运输信息

UN编号	UN2376
类别	3
包装类别	II
监管条件代码(*)

391472

J&K

3,4-Dihydro-2H-pyran

98%

60元/5G; 140元/100G; 507元/500G;

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基本信息

分子式	C₅H₈O
分子量	84.12
熔点	-70
沸点	84-88
闪点	-16
密度	0.922
折光率(n20D)	1.440
MDL编码	MFCD00006558
Beilstein	103493
EINECS 编号	203-810-4

安全信息

图形或危害标志
提示语	Danger
危险说明	H225 H315 H319 H335
防范说明	P210 P261 P305+P351+P338
UN号码	2376
危险分类	3
包装等级	II
WGK	3
TSCA	是

L02731

Alfa Aesar

3,4-Dihydro-2H-pyran

99%

276元/25ml; 336元/100ml; 1100元/500ml;

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应用
Widely used hydroxyl-protecting reagent3,4-Dihydro-2H-pyran is used as a hydroxyl-protecting reagent in organic synthesis. It acts as an intermediate in synthetic chemistry. It is used to protect various reactive functional groups. It is involved in the polymerization reaction either alone or with unsaturated compound and finds application in polymer industries. Further, it is employed in the preparation of bicyclic compounds of epoxide-fused, halo compounds and allenic alcohols.

备注
Incompatible with oxidizing agents, strong acids and alcohols.

基本信息

MDL
MFCD00006558

EINECS
203-810-4

分子式
C₅H₈O

分子量
84.12

熔点
-70°

沸点
85-86°

闪点
-15°(5°F)

密度
0.926

折射率
1.4420

灵敏度
Ambient temperatures.

形态
Liquid

溶解性
Miscible with water and chloroform.

Beilstein
103493

GHS危害和防范说明

GHS符号

Hazard Statements
H225-H315-H319-H335
Highly flammable liquid and vapour.Causes skin irritation.Causes serious eye irritation.May cause respiratory irritation.

Precautionary Statements
P210-P261-P280g-P305+P351+P338-P403+P233
Keep away from heat/sparks/open flames/hot surfaces. - No smoking.Avoid breathing dust/fume/gas/mist/vapours/spray.Wear protective gloves.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.Store in a well-ventilated place. Keep container tightly closed.

安全信息

危险等级
3

包装组
II

危险类别
11-36/37/38
Highly flammable.Irritating to eyes, respiratory system and skin.

安全等级
7/9-16-23-26-37
Keep container tightly closed and in a well-ventilated place.Keep away from sources of ignition - No smoking.Do not breathe gas/fumes/vapour/spray (appropriate wording to be specified by the manufacturer).In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

欧盟危险品标志

TSCA
是

C11478

Alfa Aesar

3,4-Dihydro-2H-pyran

99%

515元/100g; 1915元/500g;

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基本信息

Ref#
11478

MDL
6558

分子式
C5 H8 O

分子量
84.12

闪点
-9

密度
0.92

形态
Liquid

安全信息

危险等级
3

包装组
II

8.02971

Sigma-Aldrich

3,4-Dihydro-2H-pyran

for synthesis

361.2元/100 ML; 484.11元/250 ML;

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产品说明

分析说明

Assay (GC, area%): ≥ 98.0 % (a/a)
Density (d 20 °C/ 4 °C): 0.926 - 0.929
Water (GC): ≤ 0.50 % (a/a)
Identity (IR): passes test

基本信息

经验(实验)分子式	C₅H₈O
分子量	84.12
MDL编号	MFCD00006558
EC索引号	203-810-4

产品性质

质量水平	200
蒸汽压	77.8 hPa ( 20 ℃)
测定	≥98.0% (GC)
自燃温度	240 ℃
效能	>4000 mg/kg LD₅₀, oral (Rat)
expl. lim.	1.1-13.8 % (v/v)
pH值(酸碱度)	7 (20 ℃, 5 g/L in H₂O)
bp	85.5 ℃/1013 hPa
mp	-70 ℃
转变温度	flash point -9 ℃
溶解性	7.7 g/L
密度	0.929 g/cm³ at 20 ℃
储存温度	2-30℃
InChI	1S/C5H8O/c1-2-4-6-5-3-1/h2,4H,1,3,5H2
InChI key	BUDQDWGNQVEFAC-UHFFFAOYSA-N

安全信息

象形图
警示用语：	Danger
危险声明	H225 - H315 - H317 - H319 - H412
预防措施声明	P210 - P233 - P273 - P280 - P303 + P361 + P353 - P305 + P351 + P338
危险分类	Aquatic Chronic 3 - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2 - Skin Sens. 1B
补充剂危害	EUH019
储存分类代码	3 - Flammable liquids
WGK	WGK 3
闪点(F)	5.0 °F - closed cup
闪点(C)	-15 ℃ - closed cup

987876

Amethyst

3,4-Dihydro-2H-pyran

98%, 用于合成

48元/25ML; 83元/100ML; 310元/500ML; 1236元/2.5L;

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基本信息

分子式	C₅H₈O
分子量	84.12
熔点	-70
沸点	84-88
闪点	-16
密度	0.922
折光率(n20D)	1.44 - 1.443
MDL编码	MFCD00006558
Beilstein	103493
EINECS 编号	203-810-4

安全信息

图形或危害标志
提示语	Danger
危险说明	H225 H315 H319 H335
防范说明	P210 P261 P305+P351+P338
UN号码	2376
危险分类	3
包装等级	II
WGK	3
TSCA	是

130700

Fluorochem

3,4-Dihydro-2H-pyran

97%

220元/25g; 770元/100g; 1100元/500g;

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基本信息

CAS Number	110-87-2
MDL Number	MFCD00006558
Boiling Point	86℃
Density	0.92

安全信息

图形或危害标志
危险性说明	H225: Highly flammable liquid and vapour. H315: Causes skin irritation. H319: Causes serious eye irritation. H335: May cause respiratory irritation.
防范说明	P210: Keep away from – No smoking. P233: Keep container tightly closed. P235: Keep cool. P240: Ground/bond container and receiving equipment. P241: Use explosion-proof ./ equipment. P242: Use only non-sparking tools. P243: Take precautionary measures against static discharge. P260: Do not breathe . P261: Avoid breathing P264: Wash hands thoroughly after handling. P271: Use only outdoors or in a well-ventilated area. P280: Wear . P302 + P352: IF ON SKIN: Wash with plenty of soap and water. P303 + P361 + P353: IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. P304: IF INHALED: . 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 . on this label). P332 + P313: If skin irritation 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. P370 + P378: In case of fire: Use CO2, powder or sand for extinction. P403: Store in a well-ventilated place. P403 + P233: Store in a well-ventilated place. Keep container tightly closed. P403 + P235: Store in a well-ventilated place. Keep cool. P405: Store locked up. P501: Dispose of contents/container to local regulations.