CAS号，即Chemical Abstracts Service Number，是由美国化学文摘服务社（Chemical Abstracts Service，简称CAS）分配的独特识别编号。每个CAS号由三部分数字组成，数字之间以短线连接，如7732-18-5（水）。CAS号的设计初衷是为每一种化学物质分配一个唯一的标识符，以解决同一物质可能有多个名称带来的混淆问题。1.1 CAS...
光谱特性:SADTLER REFERENCE NUMBER: 1244 (IR, PRISM)Intense mass spectral peaks: 116 m/z (100%), 88 m/z (49%), 44 m/z (43%), 148 m/z (40%)Intense mass spectral peaks: 60 m/z, 296 m/zIR: 15313 (Sadtler Research Laboratories IR Grating Collection)NMR: 6686 (Sadtler Research ...
and forms an almost infinite numberof organic compounds. Anaturally occurring radioactive isotope,14C, has a half-life of 5780 years and is used in archaeo logical investigations to date artifacts and ancient documents. Other uses of carbon depend on its form. For example, diamonds for jewels ...
CAS号:CAS号(Chemical Abstracts Service Number)是由美国化学文摘服务社(Chemical Abstracts Service, CAS)分配的唯一识别编号。CAS号用于全球范围内标识化学物质,是一个全球通用的标准。 EINECS/ELINCS编号:EINECS(European Inventory of Existing Commercial Chemical Substances)和ELINCS(European List of Notified Chemical...
3.Composition/information on ingredients 3.1 Substances Chemical nameCommon names and synonymsCAS numberEC numberConcentration taurine taurine 107-35-7 none 100% 4.First-aid measures 4.1 Description of necessary first-aid measures General advice Consult a physician. Show this safety data sheet to ...
1、MSDS中的CAS是什么 CASRegistryNumber或称CASNumber又称CAS登录号 是美国化学文摘服务社(ChemicalAbstractsService,CAS)为化学物质制订的登记号，该号是检索有多个名称的化学物质信息的重要工具。是某种物质（化合物、高分子材料、生物序列（Biologicalsequences）、混合物或合金的8唯一的数字识别号码。 美国化学会的下...
稳定性Stable. Incompatible with a very wide range of materials, including acid chlorides, strong acids, strong oxidizing agents, strong reducing agents, phosphorus halides, moisture, copper wool + trichloroacetic acid. Reacts violently with a number of materials - consult a full data sheet before ...
CAS号（CAS Registry Number或称CAS Number, CAS Rn, CAS #），又称CAS登录号，是某种物质，化合物...
(stable for 1 year at ?20°C) or in a solution of 50 mM Tris, pH 8.0, 1 mM CaCl2 (stable for months at 4°C). It is generally used at a working concentration of up to 50 μg/mL in any of a number of buffer formulations, including those that contain as much as 0.5% SDS[...
Recent bioinformatic analysis identified a large number of new Cas13s with similar domain structures as Cas13bt326, where the HEPN domains are at the two ends of the polypeptide chain and connected to the REC domains with IDLs (Supplementary Fig. 11). These new Cas13 effectors may take a ...