抗坏血酸
抗坏血酸用途
抗坏血酸作用
抗坏血酸名称
[ CAS 号 ]:
50-81-7
[ 中文名 ]:
L-抗坏血酸
[ 英文名 ]:
Ascorbic acid
[中文别名 ]:
[英文别名 ]:
- L-Ascorbic acid
- EINECS 200-066-2
- L-Ascorbic acid(C)
- Calscorbate
- monodehydro-L-ascorbic acid
- Cetebe
- MFCD03457784
- L(+)-Ascorbic acid
- Vitamin C
抗坏血酸生物活性
[ 描述 ]:
[ 相关类别 ]:
[参考文献]
[相关活性小分子]
抗坏血酸物理化学性质
[ 密度 ]:
2.0±0.1 g/cm3
[ 沸点 ]:
552.7±50.0 °C at 760 mmHg
[ 熔点 ]:
190-194 °C (dec.)
[ 分子式 ]:
C6H8O6
[ 分子量 ]:
176.124
[ 闪点 ]:
238.2±23.6 °C
[ 精确质量 ]:
176.032089
[ PSA ]:
107.22000
[ LogP ]:
-2.41
[ 外观性状 ]:
白色至非常淡黄色结晶粉末
[ 蒸汽压 ]:
0.0±3.4 mmHg at 25°C
[ 折射率 ]:
1.711
[ 储存条件 ]:
通风低温干燥
[ 水溶解性 ]:
333 g/L (20 ºC)
抗坏血酸MSDS
抗坏血酸毒性和生态
CHEMICAL IDENTIFICATION
- RTECS NUMBER :
- CI7650000
- CHEMICAL NAME :
- L-Ascorbic acid
- CAS REGISTRY NUMBER :
- 50-81-7
- LAST UPDATED :
- 199707
- DATA ITEMS CITED :
- 46
- MOLECULAR FORMULA :
- C6-H8-O6
- MOLECULAR WEIGHT :
- 176.14
- WISWESSER LINE NOTATION :
- T5OV EHJ CQ DQ EYQ1Q
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Intravenous
- SPECIES OBSERVED :
- Human - man
- DOSE/DURATION :
- 2300 mg/kg/2D
- TOXIC EFFECTS :
- Blood - oxidant related (GPD deficient) anemia
- TYPE OF TEST :
- LDLo - Lowest published lethal dose
- ROUTE OF EXPOSURE :
- Intravenous
- SPECIES OBSERVED :
- Human - woman
- DOSE/DURATION :
- 900 mg/kg
- TOXIC EFFECTS :
- Kidney, Ureter, Bladder - changes in tubules (including acute renal failure, acute tubular necrosis)
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 11900 mg/kg
- TOXIC EFFECTS :
- Sense Organs and Special Senses (Eye) - lacrimation Behavioral - somnolence (general depressed activity) Gastrointestinal - hypermotility, diarrhea
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Subcutaneous
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- >10 gm/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Intravenous
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- >4 gm/kg
- TOXIC EFFECTS :
- Behavioral - altered sleep time (including change in righting reflex) Behavioral - somnolence (general depressed activity)
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 3367 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Intraperitoneal
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 643 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Intravenous
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 518 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 546 gm/kg/13W-I
- TOXIC EFFECTS :
- Related to Chronic Data - death
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- DOSE :
- 2500 mg/kg
- SEX/DURATION :
- female 1-22 day(s) after conception
- TOXIC EFFECTS :
- Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants)
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Intraperitoneal
- DOSE :
- 6680 mg/kg
- SEX/DURATION :
- female 11 day(s) after conception
- TOXIC EFFECTS :
- Reproductive - Effects on Embryo or Fetus - fetal death
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Intravenous
- DOSE :
- 800 mg/kg
- SEX/DURATION :
- female 8 day(s) after conception
- TOXIC EFFECTS :
- Reproductive - Specific Developmental Abnormalities - Central Nervous System Reproductive - Specific Developmental Abnormalities - musculoskeletal system
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- DOSE :
- 19500 mg/kg
- SEX/DURATION :
- female 30-58 day(s) after conception lactating female 10 day(s) post-birth
- TOXIC EFFECTS :
- Reproductive - Effects on Newborn - biochemical and metabolic
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- DOSE :
- 5800 mg/kg
- SEX/DURATION :
- female 1-58 day(s) after conception
- TOXIC EFFECTS :
- Reproductive - Effects on Newborn - stillbirth Reproductive - Effects on Newborn - viability index (e.g., # alive at day 4 per # born alive)
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- DOSE :
- 2471 mg/kg
- SEX/DURATION :
- multigenerations
- TOXIC EFFECTS :
- Reproductive - Effects on Newborn - growth statistics (e.g.%, reduced weight gain)
- TYPE OF TEST :
- Sperm Morphology
- TYPE OF TEST :
- Micronucleus test
- TYPE OF TEST :
- Cytogenetic analysis
- TYPE OF TEST :
- Sister chromatid exchange
MUTATION DATA
- TYPE OF TEST :
- DNA damage
- TEST SYSTEM :
- Mammal - species unspecified Lymphocyte
- DOSE/DURATION :
- 500 umol/L
- REFERENCE :
- JNSVA5 Journal of Nutritional Science and Vitaminology. (Business Center for Academic Soc. Japan, 2-4-16 Yayoi, Bunkyo-ku, Tokyo 113, Japan) V.19- 1973- Volume(issue)/page/year: 24,263,1978 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - M0462 No. of Facilities: 5030 (estimated) No. of Industries: 24 No. of Occupations: 33 No. of Employees: 69440 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - M0462 No. of Facilities: 7888 (estimated) No. of Industries: 41 No. of Occupations: 56 No. of Employees: 137698 (estimated) No. of Female Employees: 84231 (estimated)
抗坏血酸安全信息
[ 个人防护装备 ]:
Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
[ 危害码 (欧洲) ]:
Xn
[ 风险声明 (欧洲) ]:
R20/21/22
[ 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 ]:
CI7650000
[ 海关编码 ]:
29362700
抗坏血酸合成路线
抗坏血酸上下游产品
抗坏血酸上游产品
抗坏血酸下游产品
抗坏血酸制备
1.以葡萄糖为原料,在镍催化下加氢生成山梨醇,再经醋酸杆菌发酵氧化成L-山梨糖,然后在浓硫酸催化下与丙酮发生缩合反应生成双丙酮L-山梨糖,再在碱性条件下用高锰酸钾氧化成L-抗坏血酸。生产流程和生产工艺为:
D-葡萄糖还原↓氢气,镍发酵氧化↓醋酸杆菌缩合↓丙酮,硫酸氧化↓KMnO4
环化,脱保护↓HCl气体重结晶↓乙醇成品
D-葡萄糖催化氢化用镍做催化剂可将葡萄糖转化为D-山梨糖醇。将D-山梨糖醇在醋酸杆菌作用下被氧化发酵成L-山梨糖,得率超过90%。再通过结晶法分离出L山梨糖。这个过程可以连续地大规模进行。
再以硫酸为催化剂,用丙酮处理L山梨糖可将其转变成2,3-O-异亚丙基-α-山梨糖和2,3,4,6-异亚丙基-α-L-呋喃山梨糖的混合物。将反应溶液中和,通过蒸馏除去丙酮,再用甲苯萃取产物。也可以用氯化铁或溴化铁代替催化剂硫酸。
在稀氢氧化钠溶液中,用次氯酸钠做氧化剂,用氯化镍做催化剂,可将2,3,4,6-异亚丙基αL呋喃山梨糖氧化成2,3,4,6-二(O-异亚丙基)-2-氧代-L-古罗糖酸。得率可达到90%以上。这步氧化反应也可在碱性条件下用高锰酸钾氧化,或在碱性溶液中直接用电化学方法氧化,或者在镍或钯的存在下用氧进行催化氧化。
使2,3,4,6-二(O-异亚丙基)-2-氧代-L-古罗糖酸脱去丙酮保护基和直接环化的方法有几种。方法之一是在水氯仿乙醇混合溶液中,用氯化氢气体处理古罗糖酸。在反应结束时,可将产品L抗坏血酸过滤,得率大于80%,再用稀乙醇重结晶可得抗坏血酸成品。
以葡萄糖为原料,在镍催化剂下加压氧化成山梨醇,再经醋酸杆菌发酵氧化成L-山梨醇,在浓硫酸催化下与丙酮反应生成双丙酮-L-山梨醇,再于碱性条件下经高锰酸钾氧化成L-抗坏血酸。
由葡萄糖制成D-山梨醇,再氧化发酵,生成L-山梨糖,经缩合生成二丙酮-L-山梨糖,再经氧化生成二丙酮-2-酮-L-葡萄糖酸,然后酯化成2-酮-L-葡萄糖酸甲酯,与甲醇钠作用生成抗坏血酸钠,最后再与盐酸加热得到抗坏血酸。
2.通常可先由葡萄糖制成D-山梨糖醇,然后经氧化发酵生成L-山梨糖,再缩合生成二丙酮-L-山梨糖,而后经氧化生成二丙酮-2-酮-L- 酮 葡萄糖酸,再酯化成2- 酮-L葡萄糖酸甲酯,最后与甲醇钠作用生成抗坏血酸钠,与盐酸共热制成抗坏血酸。
抗坏血酸海关
[ 海关编码 ]: 29362700
抗坏血酸文献
PLoS ONE 9(9) , e108055, (2014)
Magnetic resonance imaging (MRI) using measurement of the transverse relaxation time (R2*) is to be considered as a promising approach for cell tracking experiments to evaluate the fate of transplante...
DNA double-strand breaks by Cr(VI) are targeted to euchromatin and cause ATR-dependent phosphorylation of histone H2AX and its ubiquitination.Toxicol. Sci. 143(1) , 54-63, (2014)
Hexavalent chromium is a human respiratory carcinogen that undergoes intracellular activation in vivo primarily via reduction with ascorbate. Replication of Cr-adducted DNA triggers mismatch repair th...
Hypoxia reduces MAX expression in endothelial cells by unproductive splicing.FEBS Lett. 588(24) , 4784-90, (2014)
The MYC-MAX-MXD network is involved in the regulation of cell differentiation and proliferation. Hypoxia affects the expression levels of several members of this network, but changes specific to MAX e...
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区域:邯郸市丛台区
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¥33.0/1kg
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抗坏血酸相关知识
2018-12-26 11:30:07
导读:维生素C(又名抗坏血酸)与人体健康关系密切,是一种重要而特殊的水溶性维生素,具有分子结构最为简单,理化性质最不稳定,人体每日需要量最大,膳食分布最为集中等特殊性质,在维持人体正常功能方面具有多种重要的作用。维生素是一类维持机体正常生理功能所必需的低分子有机化合物的总称。目前公认的维生素主要有...
2022-05-13 09:46:27
抗坏血酸的简介及制备 抗坏血酸,又称维生素C,是一种水溶性维生素,一般为白色片状结晶或者结晶性粉末,有酸味,据化源网资料可知,抗坏血酸化学结构式为C6H8O6,CAS号50-81-7,熔点190~194摄氏度,相对分子量176.124,易溶于水,略微溶于乙醇,但是不溶于苯、乙醚、石油醚、氯仿、油...
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【抗坏血酸】化源网提供抗坏血酸CAS号50-81-7,抗坏血酸MSDS及其说明、性质、英文名、生产厂家、作用/用途、分子量、密度、沸点、熔点、结构式等。CAS号查询抗坏血酸上化源网,专业又轻松。>>电脑版:抗坏血酸
标题:抗坏血酸_MSDS_作用_用途_抗坏血酸CAS号【50-81-7】_化源网 地址:https://m.chemsrc.com/mip/cas/50-81-7_663467.html