筛选出 2 条数据

    品牌 产品 货期 价格 货号 规格 /
    有机砌块80-40-0

    CAS号:80-40-0

    品名:对甲苯磺酸乙酯Ethyl4-Methylbenzenesulfonate

    中文别名:对甲苯磺酰乙酯;4-甲基苯磺酸乙酯;乙基-4-甲基苯磺酸酯;

    英文别名:Benzenesulfonicacid,4-methyl-,ethylester;ethyl4-methylbenzenesulfonate;

    分子式:C9H12O3S

    分子量:200.255

    精确质量:200.051

    Psa:51.75

    RTECS号:XT6825000

    EINECS号:201-276-7

    MDL号:MFCD00009100

    外观与性状:透明无色至褐色液体在熔点后

    密度:1.174g/mLat 25°C(lit.)

    沸点:158-162°C10mm Hg(lit.)

    熔点:29-33°C(lit.)

    闪点:316°F

    折射率:n20/D 1.511(lit.)

    安全说明:S26-S45-S36/37/39

    危险类别码:R22; R36/37/38; R40

    WGK Germany:3

    海关编码:29041000

    危险品运输编码:UN2811

    危险类别:6.1

    包装等级:III

    危险品标志:Xn

    用途:用于有机合成作为乙基化剂,在医药工业中用来生产溴苄铵,还用作感光材料的中间体。该品是乙酸纤维的韧化剂。

     80-40-0 详细信息

    有机砌块

    CAS号:80-40-0

    品名:对甲苯磺酸乙酯Ethyl4-Methylbenzenesulfonate

    中文别名:对甲苯磺酰乙酯;4-甲基苯磺酸乙酯;乙基-4-甲基苯磺酸酯;

    英文别名:Benzenesulfonicacid,4-methyl-,ethylester;ethyl4-methylbenzenesulfonate;

    分子式:C9H12O3S

    分子量:200.255

    精确质量:200.051

    Psa:51.75

    RTECS号:XT6825000

    EINECS号:201-276-7

    MDL号:MFCD00009100

    外观与性状:透明无色至褐色液体在熔点后

    密度:1.174g/mLat 25°C(lit.)

    沸点:158-162°C10mm Hg(lit.)

    熔点:29-33°C(lit.)

    闪点:316°F

    折射率:n20/D 1.511(lit.)

    安全说明:S26-S45-S36/37/39

    危险类别码:R22; R36/37/38; R40

    WGK Germany:3

    海关编码:29041000

    危险品运输编码:UN2811

    危险类别:6.1

    包装等级:III

    危险品标志:Xn

    用途:用于有机合成作为乙基化剂,在医药工业中用来生产溴苄铵,还用作感光材料的中间体。该品是乙酸纤维的韧化剂。

    展开

    有机砌块80-40-0
    Sigma-Aldrich 对甲苯磺酸乙酯 Ethylp-toluenesulfonate 请咨询 询价 68383 /
    有机砌块62-50-0

    CAS号:62-50-0

    品名:甲磺酸乙酯ethylmethanesulfonate

    中文别名:甲基磺酸乙酯;甲基磺酸乙酯(EMS);甲烷磺酸乙酯;

    英文别名:CB1528;ethylmethanesulfonate;ETHYLMESYLATE;rcrawastenumberu119;EMS;Ethylmesilate;Methanesulfonicacid,ethylester;Ethylmethanesulfonate;methanesulfonicacidethylester;Half-Myleran;

    分子式:C3H8O3S

    分子量:124.159

    精确质量:124.019

    Psa:51.75

    RTECS号:PB2100000

    UNII号:9H154DI0UP

    外观与性状:无色液体

    密度:1.206g/mLat 20°C

    沸点:85-86°C10mm Hg(lit.)

    熔点:&< 25ºC

    闪点:100 °C

    折射率:n20/D 1.418(lit.)

    稳定性:Stable. Combustible. Incompatible with water, alkalies, oxidizing agents.

    储存条件:Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.

    安全说明:S53-S23-S36/37/39-S45

    危险类别码:R46; R22; R40

    WGK Germany:3

    危险品运输编码:2810

    危险类别:6.1

    包装等级:II

    危险品标志:T

    简介:Ethylmethanesulfonate(EMS)isamutagenic,teratogenic,andpossiblycarcinogenicorganiccompoundwithformulaC3H8SO3.Itproducesrandommutationsingeneticmaterialbynucleotidesubstitution;particularlybyguaninealkylation.Thistypicallyproducesonlypointmutations.Itcaninducemutationsatarateof5x10−4to5x10−2pergenewithoutsubstantialkilling.TheethylgroupofEMSreactswithguanineinDNA,formingtheabnormalbaseO-6-ethylguanine.DuringDNAreplication,DNApolymerasesthatcatalyzetheprocessfrequentlyplacethymine,insteadofcytosine,oppositeO-6-ethylguanine.Followingsubsequentroundsofreplication,theoriginalG:CbasepaircanbecomeanA:Tpair(atransitionmutation).Thischangesthegeneticinformation,isoftenharmfultocells,andcanresultindisease.

    用途:用作菌种诱变剂,以及有机合成和癌症的研究。

     62-50-0 详细信息

    有机砌块

    CAS号:62-50-0

    品名:甲磺酸乙酯ethylmethanesulfonate

    中文别名:甲基磺酸乙酯;甲基磺酸乙酯(EMS);甲烷磺酸乙酯;

    英文别名:CB1528;ethylmethanesulfonate;ETHYLMESYLATE;rcrawastenumberu119;EMS;Ethylmesilate;Methanesulfonicacid,ethylester;Ethylmethanesulfonate;methanesulfonicacidethylester;Half-Myleran;

    分子式:C3H8O3S

    分子量:124.159

    精确质量:124.019

    Psa:51.75

    RTECS号:PB2100000

    UNII号:9H154DI0UP

    外观与性状:无色液体

    密度:1.206g/mLat 20°C

    沸点:85-86°C10mm Hg(lit.)

    熔点:&< 25ºC

    闪点:100 °C

    折射率:n20/D 1.418(lit.)

    稳定性:Stable. Combustible. Incompatible with water, alkalies, oxidizing agents.

    储存条件:Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.

    安全说明:S53-S23-S36/37/39-S45

    危险类别码:R46; R22; R40

    WGK Germany:3

    危险品运输编码:2810

    危险类别:6.1

    包装等级:II

    危险品标志:T

    简介:Ethylmethanesulfonate(EMS)isamutagenic,teratogenic,andpossiblycarcinogenicorganiccompoundwithformulaC3H8SO3.Itproducesrandommutationsingeneticmaterialbynucleotidesubstitution;particularlybyguaninealkylation.Thistypicallyproducesonlypointmutations.Itcaninducemutationsatarateof5x10−4to5x10−2pergenewithoutsubstantialkilling.TheethylgroupofEMSreactswithguanineinDNA,formingtheabnormalbaseO-6-ethylguanine.DuringDNAreplication,DNApolymerasesthatcatalyzetheprocessfrequentlyplacethymine,insteadofcytosine,oppositeO-6-ethylguanine.Followingsubsequentroundsofreplication,theoriginalG:CbasepaircanbecomeanA:Tpair(atransitionmutation).Thischangesthegeneticinformation,isoftenharmfultocells,andcanresultindisease.

    用途:用作菌种诱变剂,以及有机合成和癌症的研究。

    展开

    有机砌块62-50-0
    Sigma-Aldrich 甲磺酸乙酯 Ethylmethanesulfonate 请咨询 询价 72945 /
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