1,3-dihydro-5-methoxy-2H-benzimidazole-2-thione

Melting point / freezing point

Link to relevant study record(s)

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Justification for type of information:

Experimental test result performed using standard OECD test guidelines

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Principles of method if other than guideline:

The melting point determination of Test item was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block.

GLP compliance:

no

Type of method:

capillary method

Specific details on test material used for the study:

- Name of test material : 5-methoxy-1,3-dihydro-2H-benzimidazole-2-thione
- Molecular formula : C8H8N2OS
- Molecular weight : 180.2302 g/mol
- Smiles notation : COc1ccc2c(c1)nc([nH]2)S
- InChl : 1S/C8H8N2OS/c1-11-5-2-3-6-7(4-5)10-8(12)9-6/h2-4H,1H3,(H2,9,10,12)
- Substance type : Organic
- Physical state : Solid

Key result

Melting / freezing pt.:

>= 255.3 - <= 259.3 °C

Atm. press.:

979 hPa

Decomposition:

no

Sublimation:

no

Remarks on result:

other: other details not available

TEST DESCRIPTION AND RESULTS

Method Details		Observations	Remarks if, any
Guideline	OECD 102	-
Method	Capillary/metal block	-
Principle of method	The temperature at which a solid becomes a liquid at standard atmospheric pressure	-
Grinding of Test item done		Yes
Atmospheric pressure (in hPa)		979.0 hPa
Decomposition	Decomposition temperature(°C), if applicable	No
Sublimation	Sublimation temperature (°C), if applicable	No
Mean Melting point (°C) (RESULT)		-----
Melting point range (°C), if applicable		255.3 °C -259.3 °C

Conclusions:

The melting point determination of Test item was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block. The melting point range was determine to be 255.3 °C - 259.3 °C at 979.0 hPa.

Executive summary:

The melting point determination of Test item was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block. The melting point range was determine to be 255.3 °C - 259.3 °C at 979.0 hPa.

Description of key information

The melting point determination of Test item was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block. The melting point range was determine to be 255.3 °C - 259.3 °C at 979.0 hPa.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

255.3 °C

Additional information

The melting point determination of Test item was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block. The melting point range was determine to be 255.3 °C - 259.3 °C at 979.0 hPa.

From other reliable sources & authoritative databases melting point of test chemical is determine to be in the range 252-264 °C.