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  2. List of CAS numbers by chemical compound - Wikipedia

    en.wikipedia.org/wiki/List_of_CAS_numbers_by...

    This is a list of CAS numbers by chemical formulas and chemical compounds, ... IrS 2: iridium(IV) sulfide: 12030–51–2 IrSe 2: iridium(IV) selenide: 12030–55–6

  3. CAS Registry Number - Wikipedia

    en.wikipedia.org/wiki/CAS_Registry_Number

    A CAS Registry Number [1] (also referred to as CAS RN [2] or informally CAS Number) is a unique identification number, assigned by the Chemical Abstracts Service (CAS) in the US to every chemical substance described in the open scientific literature, in order to index the substance in the CAS Registry. This registry includes all substances ...

  4. International Nomenclature of Cosmetic Ingredients - Wikipedia

    en.wikipedia.org/wiki/International_Nomenclature...

    The relationship between a CAS Registry Number and an INCI name is not always one-to-one. In some cases, more than one INCI name may have the same CAS number, or more than one CAS number may apply to an INCI name. For example, the CAS number 1245638-61-2 has the CA Index Name of 2-Propenoic acid, reaction products with pentaerythritol.

  5. Chemical Abstracts Service - Wikipedia

    en.wikipedia.org/wiki/Chemical_Abstracts_Service

    Chemical Abstracts is a periodical index that provides numerous tools such as SciFinder as well as tagged keywords, summaries, indexes of disclosures, and structures of compounds in recently published scientific documents. Approximately 8,000 journals, technical reports, dissertations, conference proceedings, and new books, available in at ...

  6. Internal Revenue Service - Wikipedia

    en.wikipedia.org/wiki/Internal_Revenue_Service

    The Internal Revenue Service ( IRS) is the revenue service for the United States federal government, which is responsible for collecting U.S. federal taxes and administering the Internal Revenue Code, the main body of the federal statutory tax law. It is an agency of the Department of the Treasury and led by the Commissioner of Internal Revenue ...

  7. Commissioner v. Glenshaw Glass Co. - Wikipedia

    en.wikipedia.org/wiki/Commissioner_v._Glenshaw...

    Commissioner v. Glenshaw Glass Co., 348 U.S. 426 (1955), was an important income tax case before the United States Supreme Court.The Court held as follows: Congress, in enacting income taxation statutes that comprehend "gains or profits and income derived from any source whatever," intended to tax all gain except that which was specifically exempted.

  8. Individual Taxpayer Identification Number - Wikipedia

    en.wikipedia.org/wiki/Individual_Taxpayer...

    An Individual Taxpayer Identification Number ( ITIN) is a United States tax processing number issued by the Internal Revenue Service (IRS). It is a nine-digit number beginning with the number “9”, has a range of numbers from "50" to "65", "70" to "88", “90” to “92” and “94” to “99” for the fourth and fifth digits, and is ...

  9. Taxpayer Identification Number - Wikipedia

    en.wikipedia.org/wiki/Taxpayer_Identification_Number

    A Taxpayer Identification Number ( TIN) is an identifying number used for tax purposes in the United States and in other countries under the Common Reporting Standard. In the United States it is also known as a Tax Identification Number ( TIN) or Federal Taxpayer Identification Number ( FTIN ). A TIN may be assigned by the Social Security ...

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