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4H-Pyrido[1,2-a]pyrimidine-3-carboxylic acid, 6,7,8,9-tetrahydro-4-oxo-9-(phenylhydrazono)-, ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

104128-34-9

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104128-34-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 104128-34-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,1,2 and 8 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 104128-34:
(8*1)+(7*0)+(6*4)+(5*1)+(4*2)+(3*8)+(2*3)+(1*4)=79
79 % 10 = 9
So 104128-34-9 is a valid CAS Registry Number.

104128-34-9SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 10, 2017

Revision Date: Aug 10, 2017

1.Identification

1.1 GHS Product identifier

Product name ethyl 4-oxo-9-phenylhydrazino-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidine-3-carboxylate

1.2 Other means of identification

Product number -
Other names 4-Oxo-9-(phenyl-hydrazono)-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidine-3-carboxylic acid ethyl ester

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:104128-34-9 SDS

104128-34-9Downstream Products

104128-34-9Relevant academic research and scientific papers

Structural Studies on 9-Hydrazono-6,7,8,9-tetrahydro-4-oxo-4H-pyridopyrimidines by 1H, 13C and 15N NMR Spectroscopy

Toth, Gabor,Szoelloesy, Aron,Almasy, Attila,Podanyi, Benjamin,Hermecz, Istvan,et al.

, p. 687 - 693 (2007/10/02)

1H, 13C and 15N NMR studies demonstrated that 9-hydrazono-6,7,8,9-tetrahydro-4-oxo-4H-pyrido-pyrimidines exist as an equilibrium mixture of Z-E isomers in the hydrazono-imino tautomeric form having an exocyclic double bond.Proton-catalysed Z-E interconversion is fast.Substituent and solvent effects revealed that the decisive factors controlling the Z:E ratio are internal hydrogen bonding in the Z-isomer, stabilization and steric interaction.

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