2-methylnaphthalene |
Last updated: 25/05/2024
|
|
(Also known as: moth balls; methylnaphthalene; beta methylnaphthalene) |
The following alerts are based on the data in the tables below. An absence of an alert does not imply the substance has no implications for human health, biodiversity or the environment but just that we do not have the data to form a judgement.
Environmental fate |
Ecotoxicity |
Human health |
  |
  |
|
|
A largely obsolete insecticide once used as a moth repellant for the protection of textiles and as an animal repellant against nuisance vertebrate pests. It is also a constituent of some inert product additives. |
|
Moths |
|
Non-cropped situations; Wool clothing and textiles |
|
- |
|
- |
|
Considered obsolete but may be available in some countries |
|
1948, parent substance, naphthalene, first registered as a pestcide USA |
|
- |
|
Not approved |
|
Not applicable |
|
No UK approval for use |
EC Regulation 1107/2009 (repealing 91/414) |
|
Not approved |
|
Not applicable |
|
Not applicable |
|
Not applicable |
|
No |
|
ATAustria |
BEBelgium |
BGBulgaria |
CYCyprus |
CZCzech Republic |
DEGermany |
DKDenmark |
EEEstonia |
ELGreece |
  |
  |
  |
  |
  |
  |
  |
  |
  |
ESSpain |
FIFinland |
FRFrance |
HRCroatia |
HUHungary |
IEIreland |
ITItaly |
LTLithuania |
LULuxembourg |
  |
  |
  |
  |
  |
  |
  |
  |
  |
LVLatvia |
MTMalta |
NLNetherlands |
PLPoland |
PTPortugal |
RORomania |
SESweden |
SISlovenia |
SKSlovakia |
  |
  |
  |
  |
  |
  |
  |
  |
  |
|
|
ISIceland |
NONorway |
|
|
|
|
|
|
|
  |
  |
  |
  |
  |
  |
  |
  |
  |
|
|
2-methyl naphthalene is isomeric with 1-methyl naphthalene. |
|
C₁₁H₁₀ |
|
CC1=CC2=CC=CC=C2C=C1 |
|
- |
|
QIMMUPPBPVKWKM-UHFFFAOYSA-N |
|
InChI=1S/C11H10/c1-9-6-7-10-4-2-3-5-11(10)8-9/h2-8H,1H3 |
|
Yes |
Cambridge Crystallographic Data Centre diagrams |
|
|
Common Name |
Relationship |
Link |
naphthalene |
Parent |
|
|
Semiochemical, Other substance |
|
Constituent of some solvents |
|
Plant-derived substance; Substituted naphthalene |
|
- |
|
- |
|
Natural |
|
Repellent action caused by strong odour, DNA damage response |
|
A natural substance that occurs naturally in fossil fuels such as petroleum and coal. It is also found in some plants including Ambay pumpwood (Cecropia pachystachya) and Rooibos (Aspalathus linearis) |
|
Methylnaphthalene is manufactured from coal tar through the extraction of heteroaromatics and phenols |
|
Deterrant for damaging moths |
|
Moths |
|
Non-cropped situations; Wool clothing and textiles |
|
- |
|
91-57-6 |
|
7419-61-6 |
|
202-078-3 |
|
- |
|
- |
|
7055 |
|
No data found |
|
142.20 |
|
2-methylnaphthalene |
|
2-methylnaphthalene |
|
2-methylnaphthalene |
|
Prohibited in Europe since 2008; WFD priority substance |
|
EU Directive 2008/105/EC EQS Inland surface waters: 2.4 ug naphthalene/L; other surface waters 1.2 ug naphthalene/L as annual average |
|
Not applicable |
|
Not applicable |
|
Not applicable |
|
Not applicable |
|
- |
|
White crystalline solid with distinctive odour |
|
|
|
|
|
|
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
|
- |
- |
- |
|
- |
- |
- |
|
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
|
|
|
|
- |
|
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
|
|
- |
- |
- |
|
- |
|
|
- |
- |
- |
|
- |
|
|
- |
- |
- |
|
- |
|
|
- |
- |
- |
|
- |
|
- |
- |
- |
|
- |
- |
- |
|
As this parameter is not normally measured directly, a surrogate measure is used: ‘Photochemical oxidative DT₅₀’. Where data is available, this can be found in the Fate Indices section below. |
|
- |
Soil adsorption and mobility |
|
None
Terrestrial ecotoxicology |
|
|
|
|
|
4050 |
Rat |
Low |
|
|
- |
- |
- |
|
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
- |
- |
- |
|
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
|
- |
- |
- |
- |
|
- |
- |
- |
- |
|
|
- |
- |
- |
|
- |
- |
- |
|
|
- |
- |
- |
|
- |
|
|
- |
- |
- |
|
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
|
|
|
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
|
- |
- |
- |
|
- |
- |
- |
HUMAN HEALTH AND PROTECTION |
|
|
|
|
|
|
|
High (class III) |
- |
- |
|
4050 |
Rat |
Low |
|
2000 |
Rat |
- |
|
67.0 |
Mouse |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
- |
- |
- |
|
|
- |
|
Exposure may occur via inhalation, skin absorption, ingestion, skin and/or eye contact |
|
- |
- |
- |
|
Carcinogen |
|
Endocrine disruptor |
?Possibly, status not identified |
A0 A = Chromosome aberration (EFSA database) 0 = No data ; B0 B = DNA damage/repair (EFSA database) 0 = No data ; C0 C = Gene mutation (EFSA database) 0 = No data ; D0 D = Genome mutation (EFSA database) 0 = No data ; E0 E = Unspecified genotoxicity type (miscellaneous data source) 0 = No data |
No data found |
Reproduction / development effects |
Acetyl cholinesterase inhibitor |
Neurotoxicant |
?Possibly, status not identified |
No data found |
✓Yes, known to cause a problem |
Respiratory tract irritant |
Skin irritant |
Skin sensitiser |
✓Yes, known to cause a problem |
No data found |
No data found |
Eye irritant |
Phototoxicant |
  |
✓Yes, known to cause a problem |
No data found |
  |
|
|
Blood toxicant at high doses Liver toxicant May cause hemolytic anemia IARC Group 2B carcinogen; CLP data - suspected carcinogen |
|
|
|
No information available |
|
Health: H302, H351 Environment: H400, H410 |
|
Not classified: Obsolete (Not classified: Obsolete) |
|
- |
|
- |
|
- |
|
|
|
2-methylnaphthalene |
|
- |
|
- |
|
- |
|
- |
|
- |
|
- |
|
- |
|
- |
|
- |
|
- |
|
- |
Record last updated: |
25/05/2024 |
Contact: |
aeru@herts.ac.uk |
Please cite as: |
Lewis, K.A., Tzilivakis, J., Warner, D. and Green, A. (2016) An international database for pesticide risk assessments and management. Human and Ecological Risk Assessment: An International Journal, 22(4), 1050-1064. DOI: 10.1080/10807039.2015.1133242 |