1733-12-6
中文名稱
甲酚紅
英文名稱
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
2026/06/01 19:16:17
1733-12-6 結(jié)構(gòu)式
基本信息
中文別名
甲酚紅鄰甲酚紅
鄰甲酚磺酞
鄰甲酚磺酰酞
鄰甲磺酞
鄰甲酚磺酜酞
甲酚紅
鄰甲酚紅
鄰甲酚磺酞
甲酚紅
鄰甲酚紅
英文別名
2-CRESOLSULFONEPHTHALEIN3,3-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
所屬類別
生物化工：生物染料物理化學(xué)性質(zhì)
外觀性狀帶綠色光澤的晶體，磨碎后為紅棕色粉末。易溶于醇及稀氫氧化鈉溶液，微溶于水。
熔點(diǎn)290 °C
沸點(diǎn)479.59°C (rough estimate)
堆積密度600-620kg/m3
密度0.98 g/mL at 25 °C
折射率1.5300 (estimate)
儲(chǔ)存條件Store at RT.
溶解度微溶于水；溶于乙醇
酸度系數(shù)(pKa)1.0(at 25℃)
形態(tài)粉末
顏色深綠色或棕紅色
PH值7.2～8.8
酸堿指示劑變色ph值范圍7.2(YELLOW)--8.8(PURPLISH RED)
水溶解性可溶
水溶解性可溶于水
用途酸堿提示劑。用20%乙醇配成0.1%溶液或0.04%水溶液（取0.04g該品溶于1.05ml0.1MNaOH溶液），再稀釋至100ml。pH變色范圍：7.2（黃）-8.8（紫紅）；2.0（紅）-3.0（琥珀色）。
最大波長(zhǎng)(λmax)570nm, 367nm, 432nm
Merck14,2578
生產(chǎn)方法將苯甲磺酸酐、鄰甲酚、無(wú)水氯化鋅混和，攪拌加熱，在115-120℃縮合反應(yīng)約7h，通水蒸氣趕凈剩余的鄰甲酚。過(guò)濾，濾餅用熱碳酸鈉水溶液溶解，過(guò)濾，在清亮濾液中加1：1鹽酸中和，劇烈攪拌。濾出結(jié)晶，用少量水洗滌，干燥，得成品。必要時(shí)可用冰醋酸重結(jié)晶提純。
BRN343399
主要應(yīng)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
InChI1S/C21H18O5S/c1-13-11-15(7-9-18(13)22)21(16-8-10-19(23)14(2)12-16)17-5-3-4-6-20(17)27(24,25)26-21/h3-12,22-23H,1-2H3
InChIKeyASMGMVUGPNODGX-UHFFFAOYSA-N
SMILESCc1cc(ccc1O)C2(OS(=O)(=O)c3ccccc23)c4ccc(O)c(C)c4
安全數(shù)據(jù)
警示詞警告
危險(xiǎn)性描述H315-H319-H335
危險(xiǎn)品標(biāo)志Xi,Xn
危險(xiǎn)類別碼36/37/38-20/21/22
安全說(shuō)明24/25-36-26
危險(xiǎn)品運(yùn)輸編號(hào)UN1170 - class 3 - PG 3 - Ethanol, solution
WGK Germany3
TSCAYes
海關(guān)編碼29349990
存儲(chǔ)類別11 - Combustible Solids
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.
應(yīng)用領(lǐng)域
用途1
酸堿指示劑。用途2
酸堿提示劑。用20%乙醇配成0.1%溶液或0.04%水溶液（取0.04g該品溶于1.05ml0.1MNaOH溶液），再稀釋至100ml。pH變色范圍：7.2（黃）-8.8（紫紅）；2.0（紅）-3.0（琥珀色）。制備方法
方法1
將苯甲磺酸酐、鄰甲酚、無(wú)水氯化鋅混和，攪拌加熱，在115-120℃縮合反應(yīng)約7h，通水蒸氣趕凈剩余的鄰甲酚。過(guò)濾，濾餅用熱碳酸鈉水溶液溶解，過(guò)濾，在清亮濾液中加1：1鹽酸中和，劇烈攪拌。濾出結(jié)晶，用少量水洗滌，干燥，得成品。必要時(shí)可用冰醋酸重結(jié)晶提純。