<生产厂家价格>

酸性红 87

酸性红 87用途

主要用于制做红墨水和红铅笔，也可用于羊毛的染色。

酸性红 87名称

[ CAS 号 ]:
548-26-5

[ 中文名 ]:
酸性红87

[ 英文名 ]:
Acid Red 87

[中文别名 ]:

[英文别名 ]:

bromox-100
eosinesaltfree
tetrabromofluorescein
EOSIN,ACID
Bromoeosine
eosin yellowish
Eosin
2',4',5',7'-tetrabromofluorescein) disodium salt
bromofluoresceic acid
fenazoeosinexg

酸性红 87物理化学性质

[ 密度 ]:
2.41 g/cm3

[ 沸点 ]:
682.3ºC at 760 mmHg

[ 分子式 ]:
C₂₀H₈Br₄O₅

[ 分子量 ]:
647.89100

[ 闪点 ]:
366.5ºC

[ 精确质量 ]:
643.71100

[ PSA ]:
75.99000

[ LogP ]:
6.71580

[ 折射率 ]:
1.842

[ 储存条件 ]:
库房通风低温干燥

酸性红 87毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: DH6832500

CHEMICAL NAME :: Benzoic acid, 2-(2,4,5,7-tetrabromo-6-hydroxy-3-oxo-3H-xanthen-9-yl )-, disodium salt

CAS REGISTRY NUMBER :: 548-26-5

LAST UPDATED :: 199710

DATA ITEMS CITED :: 6

MOLECULAR FORMULA :: C20-H8-Br4-O5.2Na

MOLECULAR WEIGHT :: 693.90

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 550 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 44,225,1978 ** TUMORIGENIC DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 13 gm/kg/1Y-I

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Skin and Appendages - tumors Tumorigenic - tumors at site of application

REFERENCE :: GANNA2 Gann. Japanese Journal of Cancer Research. (Tokyo, Japan) V.1-75, 1907-84. For publisher information, see JJCREP. Volume(issue)/page/year: 47,51,1956 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 82264 No. of Facilities: 106 (estimated) No. of Industries: 1 No. of Occupations: 3 No. of Employees: 293 (estimated)

酸性红 87安全信息

[ 风险声明 (欧洲) ]:
68

[ 安全声明 (欧洲) ]:
S22-S24/25

[ 海关编码 ]:
2932999099

酸性红 87合成路线

详细合成路线

酸性红 87上下游产品

酸性红 87上游产品

酸性红 87下游产品

酸性红 87制备

将16.6g荧光素加入100mL乙醇中,在滴加36g溴,冷却带出反应热,使反应温度不超过40℃。开始时生成的二溴荧光素易溶于乙醇,因此乙醇中的荧光素沉淀渐渐减少而生成红色溶液;当加入一半量溴时,荧光素沉淀完全消失;继续加溴时又逐渐析出砖红色的四溴荧光素结晶。当溴加完后再继续搅拌15min,然后放置过夜,过滤,用乙醇洗涤,在110℃干燥,便得四溴荧光素。四溴荧光素易溶于氢氧化钠溶液而成曙红,实际使用时常配成
0.5%钠盐水溶液。工业产品由间苯二酚与苯酐缩合,再用溴素溴化,加氢氧化钠成盐制得。

酸性红 87海关

[ 海关编码 ]: 2932999099

[ 中文概述 ]:
2932999099. 其他仅含氧杂原子的杂环化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:20.0%

[ 申报要素 ]: 品名, 成分含量, 用途

[ Summary ]:
2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%