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689211-33-4

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689211-33-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 689211-33-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,9,2,1 and 1 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 689211-33:
(8*6)+(7*8)+(6*9)+(5*2)+(4*1)+(3*1)+(2*3)+(1*3)=184
184 % 10 = 4
So 689211-33-4 is a valid CAS Registry Number.

689211-33-4Upstream product

689211-33-4Downstream Products

689211-33-4Relevant articles and documents

2,6-BIS-(AMINOMETHYL)PIPERIDINE DERIVATIVES

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Paragraph 0136-0140, (2015/12/30)

The present invention relates to 2,6-bis(aminomethyl)piperidine derivatives as such (in the following text abbreviated to “2,6-BAMP derivatives”) which are defined by the general formula (I) shown in the following text. In addition, the present invention relates to a process for preparing such 2,6-BAMP derivatives by hydrogenation of the corresponding 2,6-dicyanopiperidine derivatives (hereinafter abbreviated to “2,6-DCP derivatives”) in the presence of a catalyst. The present invention further provides for the use of the 2,6-BAMP derivatives of the invention as hardeners for epoxy resins, as intermediate in the preparation of diisocyanates, which play an important role in the production of polyurethanes, as starters in the preparation of polyetherols and/or as monomers for polyamide production. The present invention further relates to the diisocyanates as such prepared from the 2,6-BAMP derivatives and also the corresponding preparative process.

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