危规编码查询

CAS编号（CAS Registry Number或CAS Number或CAS Rn或CAS #），又称CAS登录号或CAS登记号码，是某种物质（化合物、高分子材料、生物序列、混合物或合金）的唯一的数字识别号码。

每一种都分配一个CAS编号，其目的是为了避免化学物质有多种名称的麻烦，使数据库的检索更为方便。如今几乎所有的化学数据库都允许用CAS编号检索。

CAS registry numbers are unique numerical identifiers for chemical compounds, polymers, biological sequences, mixtures and alloys. They are also referred to as CAS numbers or CAS RNs.

Chemical Abstracts Service (CAS), a division of the American Chemical Society, assigns these identifiers to every chemical that has been described in the literature. The intention is to make database searches more convenient, as chemicals often have many names. Almost all molecule databases today allow searching by CAS number.

As of Nov 2, 2005, there were 26,901,696 substances in the CAS registry — the current number is published here. About 4,000 new numbers are added each day.

CAS registry number is separated by hyphens into three parts, the first consisting of up to 6 digits, the second consisting of two digits, and the third consisting of a single digit serving as a check digit.

2。 UN no. 才是危险品特有的。 运输都要有这号码。

UN numbers or UN IDs are four-digit numbers that identify dangerous goods hazardous substances and articles (such as explosives, flammable liquids, toxic substances, etc.) in the framework of international transport. Some hazardous substances have their own UN numbers (e.g. acrylamide has UN2074), while sometimes groups of chemicals or products with similar properties receive a common UN number (e.g. flammable liquid, not otherwise specified, have UN1993). A chemical in its solid state may receive a different UN number than the liquid phase if their hazardous properties differ significantlysubstances with different levels of purity may also receive different UN numbers.

UN numbers range from UN0001 to about UN3500 and are assigned by the United Nations Committee of Experts on the Transport of Dangerous Goods. They are published as part of their Recommendations on the Transport of Dangerous Goods, also known as the Orange Book. These recommendations are adopted by the regulatory organization responsible for the different modes of transport.

NA numbers (North America), also known as DOT numbers are issued by the United States Department of Transportation and are identical to UN numbers, except that some substances without a UN number may have an NA number. These additional NA numbers use the range NA8000 - NA9999.

Associated with each UN number is a hazard identifier, which encodes the general hazard class and subdivision (and, in the case of explosives, their compatibility group). For instance, the hazard identifier of acrylamide is 6.1 and the one of cigarette lighters is 2.1. If a substances poses several dangers, then subsidiary risk identifiers may be specified. It is not possible to deduce the hazard class(es) of a substance from its UN number: they have to be looked up in a table.

The hazard classes and their divisions are:

Class 1: Explosives

Division 1.1: Substances and articles which have a mass explosion hazard

Division 1.2: Substances and articles which have a projection hazard but not a mass explosion hazard

Division 1.3: Substances and articles which have a fire hazard and either a minor blast hazard or a minor projection hazard or both, but not a mass explosion hazard

Division 1.4: Substances and articles which present no significant hazard

Division 1.5: Very insensitive substances which have a mass explosion hazard

Division 1.6: Extremely insensitive articles which do not have a mass explosion hazard

Class 2: Gases

Division 2.1: Flammable gases

Division 2.2: Non-flammable, non-toxic gases

Division 2.3: Toxic gases

Class 3: Flammable liquids

Class 4: Flammable solidssubstances liable to spontaneous combustionsubstances which, on contact with water, emit flammable gases

Division 4.1: Flammable solids, self-reactive substances and solid desensitised explosives

Division 4.2: Substances liable to spontaneous combustion

Division 4.3: Substances which in contact with water emit flammable gases

Class 5: Oxidizing substances and organic peroxides

Division 5.1: Oxidizing substances

Division 5.2: Organic peroxides

Class 6: Toxic and infectious substances

Division 6.1: Toxic substances

Division 6.2: Infectious substances

Class 7: Radioactive material

Class 8: Corrosive substances

Class 9: Miscellaneous dangerous substances and articles

对的

CN号是我国危险货物编号.UN号是联合中危险品编号.

危险货物编号：又称危规号、CN号（China DG Number，DG即Dangerous Goods），是《GB 12268-2012危险货物品名表》的危险货物编号。《危险化学品名录2012》的危险货物编号与此类同。该编号由5为阿拉伯数字组成。第1位数表示该危险货物按此国际分类所属类别，第2位数表示该危险货物按此国际分项项别，第3~5位数表示该危险货物品名的顺序号。按此国际分类，将危险货物共分为9类23项。

UN号：联合国编号（联合国危险货物运输专家委员会编号），也称作危险品运输编号。是联

合国危险货物运输专家委员会对危险物质制定的编号。UN是联合国（United Nations）的英文缩写。UN编号登录在联合国《关于危险货物运输的建议书》（Recommendations on the Transport of Dangerous Goods）中。

扩展资料:

危险货物是指容易引起燃烧、爆炸、腐蚀、中毒或有放射性的物品，在运输、储存过程中容易造成人身伤亡和财产损失，必须采用特殊防护设施与措施的货物。中国《危险货物运输规则》中，将危险货物分为:爆炸品、氧化剂、压缩气体和液化气体、自燃物品、遇水燃烧物品、易燃液体、易燃固体、毒害品、腐蚀物品和放射性物品等10类。某些易燃货物，如棉、麻、煤粉等，在含量、浓度、件重等均小于规定的限额时，可作普通货物处理。

名称：重芳烃溶剂石脑油

UN：3082 对环境有害的液态物质,未另作规定的(含有 solvent napht ha petroleum,heavy aromatic)

国家到目前只发布过：《GB13690-1992常用危险化学品分类及标志》（1992-09-28发布 1993-07-01实施）、《危险化学品名录（2002版）》（已经2003年2月24日国家安全生产监督管理局局务会议审议通过，2003年3月3日公布。）、《GB12268-2005危险货物品名表》（2005年7月26日发布，2005年11月1日实施）、《国家安全监管总局关于公布首批重点监管的危险化学品名录的通知》（60种）（2011年6月21日公布）。

其他的版本我未知。

乙醇（别名：乙醇[无水]，无水酒精，酒精溶液，变性乙醇）：

危险货物编号：32061

UN编号：1170

中国危险化学品编号：1170

CAS编号：64-17-5

以上资料根据：《危险化学品名录（2002版）》、《GB12268-2005危险货物品名表》。

如果要：《危险化学品名录（2002版）》、《GB12268-2005危险货物品名表》《GB13690-1992常用危险化学品分类及标志》请来邮箱号。

氮气不属于重大危险源范围，CAS号：7727-37-9 危规号：22005

二氯甲烷75-09-2，61552，UN号：1593，危险标记 15(有害品)，危险特性：遇明火高热可燃。受热分解能发出剧毒的光气。若遇高热，容器内压增大，有开裂和爆炸的危险。