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87774-29-6

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87774-29-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87774-29-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,7,7 and 4 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 87774-29:
(7*8)+(6*7)+(5*7)+(4*7)+(3*4)+(2*2)+(1*9)=186
186 % 10 = 6
So 87774-29-6 is a valid CAS Registry Number.

87774-29-6Downstream Products

87774-29-6Relevant articles and documents

2,4-Dialkyl Substituted Carbono- and Thiocarbonohydrazides, Reactions with Carbonyl Compounds

Neugebauer, Franz Alfred,Fischer, Hans,Siegel, Rolf,Krieger, Claus

, p. 3461 - 3481 (2007/10/02)

2,4-Dialkyl substituted carbono- and thiocarbonohydrazides (4) were prepared from alkylhydrazines and phosgene or thiophosgene.Mono carbonyl compounds reacted with 4 (molar ratio 1:1) to yield hexahydro-1,2,4,5-tetrazines (9, 14; exception 13).Aldehydes in excess generally afforded dihydrazones (3); formaldehyde, however, yielded 1,1'-methylenebis(hexahydro-1,2,4,5-tetrazines) (10) as well as the bicyclic compounds 11 and 12.The constitution of 11 was confirmed by X-ray analysis of 11b.Dialdehydes and aliphatic or alicyclic α-diketones reacted with 4 to give double hexahydro-1,2,4,5-tetrazine derivatives (19), aryl substituted α-diketones on the other hand yielded cyclic dihydrazones (15) and/or mono-hexahydro-1,2,4,5-tetrazines (16).

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