ORGANONITROGEN PESTICIDES: METHOD 5601, Issue 1, dated 15 January 1998 - Page 7 of 21
TABLE 1. GENERAL INFORMATION Name / Synonym
Empirical Formula
MW
Properties
Solubility in H2O (g/L)
Exposure Limit (mg/m3)
Aldicarb CAS# 116-06-3 RTECS UE2275000
C7H14N2O2S
190.3
MP 99-100 C; vp 3.9 mPa (2.9x10-5 mm Hg) @ 25 C; LD50 1 mg/kg
6 @ 25 C
Benomyl CAS# 17804-35-2 RTECS DD6475000
C14H18N4O3
290.36
MP decomposes; vp <1.3 mPa (<1x10-5 mm Hg) @ 20 C; LD50 >9590 mg/kg
0.002 @ 25 C
OSHA 5.0 (resp) ACGIH 10
Captan CAS# 133-06-2 RTECS GW5075000
C9H8Cl3NO2S
300.6
MP 178 C; vp <1.3 mPa (<1x10-5 mm Hg) @ 20 C; LD50 9000 mg/kg
<0.005 @ ~25 C
NIOSH 5 ACGIH 5
Carbaryl CAS# 63-25-2 RTECS FC5950000
C12H11NO2
201.24
MP 142 C; vp <5.3 mPa (<4x10-5 mm Hg) @ 25 C; LD50 250 mg/kg
0.12 @ 30 C
OSHA 5 NIOSH 5 ACGIH 5
Carbendazim CAS# 10605-21-7 RTECS DD6500000
C9H9N3O2
191.21
MP 302-307 C (decomposes); LD50 6400 mg/kg
0.008/pH 7 @ 24 C
Carbofuran CAS# 1563-66-2 RTECS FB9450000
C12H15NO3
221.28
MP 150-153; vp 0.031 mPa (2.3x10-7 mm Hg) @ 20 C; LD50 5.3 mg/kg
0.70 @ 25 C
Chlorpropham CAS# 101-21-3 RTECS FD8050000
C10H12ClNO2
213.68
MP 40.7-41.1 C; vp 2.7 mPa (2x10-5 mm Hg) @ 33 C;LD50 1200 mg/kg
slightly soluble
Diuron CAS# 330-54-1 RTECS YS8925000
C9H10Cl2N2O
233.11
MP 158-159 C; vp 0.41 mPa (3.1x10-6 mm Hg) @ 50 C; LD50 437 mg/kg
0.042 @ 25 C
Formetanate.HCl CAS# 23422-53-9 RTECS FC2800000
C11H16ClN3O2
257.75
MP 200-202 (decomposes); LD50 20 mg/kg
>50% as hydrochloride
Methiocarb CAS# 2032-65-7 RTECS FC5775000
C11H15NO2S
225.34
MP 121.5 C; vp 0.036 mPa (2.7x10-7 mm Hg) @ 25 C; LD50 60 mg/kg
insoluble
Methomyl CAS# 16752-77-5 RTECS AK2975000
C5H10N2O2S
162.24
MP 78-79 C; vp 6.7mPa (5x10-5 mm Hg) @ 25 C; LD50 17 mg/kg
58 @ 25 C
Oxamyl CAS# 23135-22-0 RTECS RP2300000
C7H13N3O3S
219.3
MP 100-102 C; vp 31 mPa (2.4x10-4 mm Hg) @ 20 C; LD50 5 mg/kg
280 @ 25 C
Propham CAS# 122-42-9 RTECS FD9100000
C10H13NO2
179.24
MP 90 C; vp 18 mPa (1.35x10-4 mm Hg); LD50 3724 mg/kg
0.25 @ 25 C
Propoxur CAS# 114-26-1 RTECS FC3150000
C11H15NO3
209.27
MP 91.5 C; vp 1.3 mPa (9.75 mm Hg) @ 20 C; LD50 83 mg/kg
2 @ 20 C
Thiobencarb CAS# 28249-77-6 RTECS EZ7260000
C12H16ClNOS
257.81
Not available; LD50 1130 mg/kg
~0.03 @ 20 C
NIOSH 0.1 ACGIH 0.1
NIOSH 10 ACGIH 10
NIOSH 2.5 ACGIH 2.5
NIOSH 0.5 ACGIH 0.5
Abbreviations: MW=molecular weight (Daltons); RTECS=Registry of Toxic Effects of Chemical Substances[18]; LD50=lethal dose 50% [19,20]; mPa=milliPascals
NIOSH Manual of Analytical Methods, Fourth Edition
