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壬二酸

壬二酸用途

Azelaic acid是一种由油酸臭氧分解产生的有机化合物,头发和皮肤调理剂的组分。

壬二酸名称

[ CAS 号 ]:
123-99-9

[ 中文名 ]:
杜鹃花酸

[ 英文名 ]:
Azelaic acid

[中文别名 ]:

[英文别名 ]:

壬二酸生物活性

壬二酸物理化学性质

[ 密度 ]:
1.1±0.1 g/cm3

[ 沸点 ]:
286 ºC (100 mmHg)

[ 熔点 ]:
98-103 ºC

[ 分子式 ]:
C9H16O4

[ 分子量 ]:
188.221

[ 闪点 ]:
215 ºC

[ 精确质量 ]:
188.104858

[ PSA ]:
74.60000

[ LogP ]:
1.33

[ 外观性状 ]:
白色片状

[ 蒸汽密度 ]:
6.5 (vs air)

[ 蒸汽压 ]:
0.0±1.8 mmHg at 25°C

[ 折射率 ]:
1.475

[ 储存条件 ]:
通风低温干燥,与氧化剂分开存放

[ 稳定性 ]:
Stable. Combustible. Incompatible with bases, strong oxidizing agents. Readily biodegrades in soil and water with >70% DOC reduction after 28 days.

[ 水溶解性 ]:
2.4 g/L (20 ºC)

壬二酸MSDS

壬二酸毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :
CM1980000
CHEMICAL NAME :
Azelaic acid
CAS REGISTRY NUMBER :
123-99-9
BEILSTEIN REFERENCE NO. :
1101094
LAST UPDATED :
199701
DATA ITEMS CITED :
7
MOLECULAR FORMULA :
C9-H16-O4
MOLECULAR WEIGHT :
188.25
WISWESSER LINE NOTATION :
QV7VQ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
REFERENCE :
EMERY* Emery Industries, Inc., Data Sheets. (4900 Este Ave., Cincinnati, OH 45232) Volume(issue)/page/year: S3B,-,1964
TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration into the eye
SPECIES OBSERVED :
Rodent - rabbit
REFERENCE :
EMERY* Emery Industries, Inc., Data Sheets. (4900 Este Ave., Cincinnati, OH 45232) Volume(issue)/page/year: S3B,-,1964 ** ACUTE TOXICITY DATA **
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
>5 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: AD-A067-313 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 83495 No. of Facilities: 170 (estimated) No. of Industries: 8 No. of Occupations: 11 No. of Employees: 1676 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 83495 No. of Facilities: 3427 (estimated) No. of Industries: 35 No. of Occupations: 42 No. of Employees: 34469 (estimated) No. of Female Employees: 7576 (estimated)

壬二酸安全信息

[ 符号 ]:

GHS07

[ 信号词 ]:
Warning

[ 危害声明 ]:
H319

[ 警示性声明 ]:
P305 + P351 + P338

[ 个人防护装备 ]:
Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter

[ 危害码 (欧洲) ]:
Xi: Irritant;

[ 风险声明 (欧洲) ]:
R36/37/38

[ 安全声明 (欧洲) ]:
S24/25

[ 危险品运输编码 ]:
NONH for all modes of transport

[ WGK德国 ]:
1

[ RTECS号 ]:
CM1980000

[ 海关编码 ]:
2917139000

壬二酸合成路线

壬二酸上下游产品

壬二酸制备

1. 生产方法简述:由油酸经硝酸氧化或臭氧氧化而得。也可以用工业蓖麻作原料裂解而得。1,5-二溴戊烷与乙腈缩合,或者以戊二酸单甲酯单酰氰为原料经酮式壬二酸二甲酯都可以制取壬二酸。

2. 烟草:OR,44;BU,9;OR,41;BU,26。

3.制法:

于装有搅拌器、回流冷凝器的反应瓶中,加入氢氧化钾100g,95%的乙醇1000mL,蓖麻油500g,搅拌回流3h,将反应液倒入3L水中,以100mL浓硫酸与300mL水配成的稀酸酸化。分出油层,热水洗涤两次,无水硫酸镁干燥。滤去干燥剂,得粗品12-羟基十八烯-9-酸(2)约480g。本品溶液聚合,因而不宜久置。最好及时用于下一步反应。于装有搅拌器、温度计、回流冷凝器的反应瓶中,加入高锰酸钾625g(3.5mol),水7.5L,于35℃剧烈搅拌溶解。一次加入由12-羟基十八烯-9-酸(2)240g(0.8mol)溶于1.6L水和64g氢氧化钾配成的溶液。反应放热,迅速升温至75℃左右。继续搅拌反应0.5h。反应过程中会产生大量泡沫,必要时可加入消泡剂。趁热过量除去MnO2,滤饼用热水洗涤两次。滤液用稀硫酸酸化。减压浓缩至约2L,冰箱中冷却析晶。过滤析出的固体,冷水洗涤,干燥后得壬二酸(1)35~38g.将其用15倍的热水重结晶,活性炭脱色,冷后滤出结晶,干燥,得纯品壬二酸(1)23~27g,mp104~106℃,收率31%~35%。

壬二酸海关

[ 海关编码 ]: 2917139000

[ 中文概述 ]:
2917139000 其他壬二酸及其盐和酯。监管条件:无。增值税率:17.0%。退税率:9.0%。最惠国关税:6.5%。普通关税:30.0%

[ 申报要素 ]: 品名, 成分含量, 用途, 对苯二甲酸请注明4-CBA值, 对苯二甲酸请注明P-TL酸值, 对苯二甲酸请注明色度, 对苯二甲酸请注明水分

[ Summary ]:
2917139000 azelaic acid, sebacic acid, their salts and esters VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

壬二酸文献

Translating clinical findings into knowledge in drug safety evaluation--drug induced liver injury prediction system (DILIps).

J. Sci. Ind. Res. 65(10) , 808, (2006)

Drug-induced liver injury (DILI) is a significant concern in drug development due to the poor concordance between preclinical and clinical findings of liver toxicity. We hypothesized that the DILI typ...

Physiology and pathophysiology of organic acids in cerebrospinal fluid.

J. Inherit. Metab. Dis. 16(4) , 648-69, (1993)

Concentrations of organic acids in cerebrospinal fluid (CSF) appear to be directly dependent upon their rate of production in the brain. There is evidence that the net release of short-chain monocarbo...

Age-related reference values for urinary organic acids in a healthy Turkish pediatric population.

Clin. Chem. 40(6) , 862-6, (1994)

Organic acid concentrations were quantified by gas chromatography and the individual acids identified by mass spectrometry in urine specimens from a healthy Turkish pediatric population of ages 2 days...


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