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Substance Name: Pyrazachlor
RN: 6814-58-0
UNII: N8UW78C99U
InChIKey: ZCHRCALASPNJEQ-UHFFFAOYSA-N

Note

  • Abscission agent for loosening citrus fruit before harvesting.

Molecular Formula

  • C4-H4-Cl-N3-O2

Molecular Weight

  • 161.5476
 

Classification Codes

  • Agricultural Chemical
  • Growth Regulator / Fertilizer
  • Unspecified / Unclassified Pesticide
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Names and Synonyms

Results Name

  • Pyrazachlor

Name of Substance

  • 5-Chloro-3-methyl-4-nitro-1H-pyrazole

Synonyms

  • 3-Chloro-5-methyl-4-nitro-1H-pyrazole
  • 4-23-00-00591 (Beilstein Handbook Reference)
  • 5-Chloro-3-methyl-4-nitropyrazole
  • ABG 3030
  • BRN 0005657
  • Caswell No. 196A
  • CMN pyrazole
  • CMNP
  • EPA Pesticide Chemical Code 207100
  • Pyrazachlor
  • Pyrazole, 3(or 5)-chloro-5(or 3)-methyl-4-nitro-
  • UNII-N8UW78C99U

Systematic Name

  • 1H-Pyrazole, 3-chloro-5-methyl-4-nitro-

Registry Numbers

CAS Registry Number

  • 6814-58-0

FDA UNII

  • N8UW78C99U

Other Registry Numbers

  • 13551-81-0
  • 52452-89-8
  • 66163-48-2
  • 73536-00-2
  • 83588-42-5

System Generated Number

  • 0006814580

Structure Descriptors

InChI

1S/C4H4ClN3O2/c1-2-3(8(9)10)4(5)7-6-2/h1H3,(H,6,7)

InChIKey

ZCHRCALASPNJEQ-UHFFFAOYSA-N

Smiles

Cc1c(c(n[nH]1)Cl)[N+](=O)[O-]

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rabbit LD50 skin > 2gm/kg (2000mg/kg)   Farm Chemicals Handbook. Vol. -, Pg. C263, 1991.
rat LC50 inhalation 6200mg/m3/4H (6200mg/m3)   Farm Chemicals Handbook. Vol. -, Pg. C263, 1991.
rat LD50 oral 350mg/kg (350mg/kg)   National Technical Information Service. Vol. PB85-143766,

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point 111 deg C   EXP
log P (octanol-water) 1.070 (none)   EST
Atmospheric OH Rate Constant 3.61E-11 cm3/molecule-sec 25 EST

Physical property data is provided to ChemIDplus by SRC, Inc.