1-butyl-1,2-dihydro-6-hydroxy-4-methyl-2-oxonicotinonitrile

Stability: thermal, sunlight, metals

Administrative data

Endpoint:

thermal stability

Remarks:

Migrated from section 'Stability: thermal, sunlight, metals'

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2015

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

comparable to guideline study with acceptable restrictions

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2015

Report date:

2015

Materials and methods

Test guideline

Qualifier:

equivalent or similar to guideline

Guideline:

OECD Guideline 113 (Screening Test for Thermal Stability and Stability in Air)

Version / remarks:

- DIN 51007

GLP compliance:

no

Test material

Test material information

Constituent 1

Reference substance name:

1-butyl-1,2-dihydro-6-hydroxy-4-methyl-2-oxonicotinonitrile

EC Number:

254-296-3

EC Name:

1-butyl-1,2-dihydro-6-hydroxy-4-methyl-2-oxonicotinonitrile

Cas Number:

39108-47-9

Molecular formula:

C11H14N2O2

IUPAC Name:

1-butyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile

Details on test material:

- Substance type: organic
- Physical state: solid
- Laborjournal-Nr.: C520/029/2015

Results and discussion

For thermal stability study

Operating temperature

Key result

Operating temp.:

30 - 500 °C

Remarks on result:

other: 1st exothemic reaction: 20 J/g at onset temperatue 130 °C; 2nd exothemic reaction: 10 J/g at onset temperatue 205 °C; 3rd exothermic reaction: >200 J/g at onset 420 °C.

Remarks:

measurd in glass

Sublimation:

not determined

Transformation products:

not measured

For study on stability to sunlight

Test substance stable to sunlight:

not determined

For study on stability to metals

Test substance stable to metals / metal ions:

not determined

Any other information on results incl. tables

Results:

1st reaction	exothermic
Onset temperature	130°C
Peak temperature	152°C
Energy release	20 J/g

The reaction was not tested for self-accelerating decomposition behavior.

 

2nd reaction	exothermic
Onset temperature	205°C
Peak temperature	238°C
Energy release	10 J/g

The reaction was not tested for self-accelerating decomposition behavior.

 

3rd reaction	exothermic
Onset temperature	420°C
Energy release	>220 J/g

The reaction is self-accelerating

Applicant's summary and conclusion

Conclusions:

The substance is thermally stable up to 130°C, at this temperature with an energy release of 20 J/g