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1733-12-6

中文名称 甲酚红
英文名称 Cresol Red
CAS 1733-12-6
分子式 C21H18O5S
分子量 382.43
MOL 文件 1733-12-6.mol
更新日期 2024/08/05 15:39:17
1733-12-6 结构式 1733-12-6 结构式

基本信息

中文别名
甲酚红
邻甲酚红
邻甲酚磺酞
邻甲酚磺酰酞
邻甲磺酞
邻甲酚磺酜酞
甲酚紅
鄰甲酚紅
鄰甲酚磺酞
甲酚红
邻甲酚红
英文别名
2-CRESOLSULFONEPHTHALEIN
3,3-BIS(3-BROMO-4-HYDROXY-5-METHYLPHENYL)-2,1LAMBDA6-BENZOXATHIOLE-1,1(3H)-DIONE
3,3-BIS(4-HYDROXY-3-METHYLPHENYL)-2,1LAMBDA6-BENZOXATHIOLE-1,1(3H)-DIONE
3',3''-DIMETHYLPHENOLSULFONEPHTHALEIN
BETZ 0419
BROMCRESOL PURPLE
BROMOCRESOL PURPLE
CR
CRESOL RED
CRESOL RED ETHANOL(20)
CRESOLSULFOPHTHALEIN
LABOTEST-BB LT00454614
NSC 7224
O-CRESOL, 4,4'-(3H-2,1-BENZOXATHIOL-3-YLIDENE)BIS[6-BROMO-, S,S-DIOXIDE
O-CRESOL, 4,4'-(3H-2,1-BENZOXATHIOL-3-YLIDENE)DI-, S,S-DIOXIDE
O-CRESOL RED
O-CRESOLSULFONEPHTHALEIN
O-CRESOLSULFONPHTHALEIN
O-CRESULFONPHTHALEIN
O-TOLUENESULFONIC ACID, A,A-BIS(5-BROMO-4-HYDROXY-M-TOLYL)-A-HYDROXY-, G-SULTONE

物理化学性质

外观性状带绿色光泽的晶体,磨碎后为红棕色粉末。易溶于醇及稀氢氧化钠溶液,微溶于水。
熔点290 °C
沸点479.59°C (rough estimate)
密度0.98 g/mL at 25 °C
折射率1.5300 (estimate)
储存条件Store at RT.
溶解度微溶于水;溶于乙醇
酸度系数(pKa)1.0(at 25℃)
形态粉末
颜色深绿色或棕红色
PH值7.2~8.8
酸碱指示剂变色ph值范围7.2(YELLOW)--8.8(PURPLISH RED)
水溶解性可溶
水溶解性可溶于水
用途酸碱提示剂。用20%乙醇配成0.1%溶液或0.04%水溶液(取0.04g该品溶于1.05ml0.1MNaOH溶液),再稀释至100ml。pH变色范围:7.2(黄)-8.8(紫红);2.0(红)-3.0(琥珀色)。
最大波长(λmax)570nm, 367nm, 432nm
Merck14,2578
生产方法将苯甲磺酸酐、邻甲酚、无水氯化锌混和,搅拌加热,在115-120℃缩合反应约7h,通水蒸气赶净剩余的邻甲酚。过滤,滤饼用热碳酸钠水溶液溶解,过滤,在清亮滤液中加1:1盐酸中和,剧烈搅拌。滤出结晶,用少量水洗涤,干燥,得成品。必要时可用冰醋酸重结晶提纯。
BRN343399
主要应用Display device, optical sensors, combustion gas detection system, inks, correction fluid, diapers, toothpaste, identifying fresh and stale rice, food storage, determine glucose in dialysis solution, monitor metabolic activity of microorganisms, detect bacterialinfection, psychoactive drugs, dental impression material
InChIKeyASMGMVUGPNODGX-UHFFFAOYSA-N

安全数据

危险性符号(GHS)
GHS07
警示词警告
危险性描述H315-H319-H335
危险品标志Xi,Xn
危险类别码36/37/38-20/21/22
安全说明24/25-36-26
危险品运输编号UN1170 - class 3 - PG 3 - Ethanol, solution
WGK Germany3
TSCAYes
海关编码29349990
毒性A potent lacrimator which is chemically stable and retains its irritancy in water and so can be used in liquid jets in personnel control. In addition to lacrimation, it causes eye pain, blepharospasm, eyelid swelling, irritation of the conjunctiva, a rise in intraocular pressure, and erythema of the skin. Because it can be used in water, its use is less affected by changes in climatic conditions. It is a more potent lacrimator than CS but it is less potent in lethality than CS.

应用领域

用途1
酸碱指示剂。
用途2
酸碱提示剂。用20%乙醇配成0.1%溶液或0.04%水溶液(取0.04g该品溶于1.05ml0.1MNaOH溶液),再稀释至100ml。pH变色范围:7.2(黄)-8.8(紫红);2.0(红)-3.0(琥珀色)。

制备方法

方法1
将苯甲磺酸酐、邻甲酚、无水氯化锌混和,搅拌加热,在115-120℃缩合反应约7h,通水蒸气赶净剩余的邻甲酚。过滤,滤饼用热碳酸钠水溶液溶解,过滤,在清亮滤液中加1:1盐酸中和,剧烈搅拌。滤出结晶,用少量水洗涤,干燥,得成品。必要时可用冰醋酸重结晶提纯。

上下游产品信息

甲酚红价格(试剂级)
报价日期产品编号产品名称CAS号包装价格
2024/04/30A17243甲酚红
Cresol Red
1733-12-625g528元
2024/04/30A17243甲酚红
Cresol Red
1733-12-6100g1442元
2024/04/30C15138甲酚红
Cresol Red, pure, Indicator grade
1733-12-65g486元
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