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Basic Information
CAS No.: 2490-89-3
Name: 4-Carbamidophenylarsenic oxide
Molecular Structure:
Molecular Structure of 2490-89-3 (4-Carbamidophenylarsenic oxide)
Formula: C7H7 As N2 O2
Molecular Weight: 226.08
Synonyms: Urea,(4-arsenosophenyl)- (9CI); Urea, (p-arsenosophenyl)- (6CI,7CI,8CI); NSC 12693
Safety: Poison by intraperitoneal and intravenous routes. Moderately toxic by ingestion. An eye irritant. When heated to decomposition it emits very toxic fumes of As and NOx. See also ARSENIC COMPOUNDS.
PSA: 72.19000
LogP: 0.73800
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Chemistry

Product Name: Carbarsone oxide (CAS NO.2490-89-3)


Molecular Formula: C7H7AsN2O2
Molecular Weight: 226.08g/mol
Mol File: 2490-89-3.mol
H-Bond Donor: 2
H-Bond Acceptor: 2
Structure Descriptors of Carbarsone oxide (CAS NO.2490-89-3):
  IUPAC Name: (4-Arsorosophenyl)urea
  Canonical SMILES: C1=CC(=CC=C1NC(=O)N)[As]=O
  InChI: InChI=1S/C7H7AsN2O2/c9-7(11)10-6-3-1-5(8-12)2-4-6/h1-4H,(H3,9,10,11) 
  InChIKey: WWXFAARCKPTHAQ-UHFFFAOYSA-N

Toxicity Data With Reference

1.    

eye-rbt 2 mg

     JPETAB    Journal of Pharmacology and Experimental Therapeutics. 82 (1944),377.
2.    

orl-rat LD50:510 mg/kg

     FEPRA7    Federation Proceedings, Federation of American Societies for Experimental Biology. 5 (1946),162.
3.    

ipr-rat LD50:55 mg/kg

     JPETAB    Journal of Pharmacology and Experimental Therapeutics. 91 (1947),112.
4.    

ivn-rat LD50:17 mg/kg

     JPETAB    Journal of Pharmacology and Experimental Therapeutics. 91 (1947),112.
5.    

ipr-mus LD50:59 mg/kg

     JPETAB    Journal of Pharmacology and Experimental Therapeutics. 91 (1947),112.
6.    

ivn-mus LD50:41 mg/kg

     JPETAB    Journal of Pharmacology and Experimental Therapeutics. 91 (1947),112.
7.    

ivn-rbt LDLo:20 mg/kg

     JPETAB    Journal of Pharmacology and Experimental Therapeutics. 91 (1947),112.

Consensus Reports

Arsenic and its compounds are on the Community Right-To-Know List.

Safety Profile

Poison by intraperitoneal and intravenous routes. Moderately toxic by ingestion. An eye irritant. When heated to decomposition it emits very toxic fumes of As and NOx. See also ARSENIC COMPOUNDS.

Standards and Recommendations

OSHA PEL: TWA 0.5 mg(As)/m3
ACGIH TLV: BEI: 35 µ (As)/L inorganic arsenic and methylated metabolites in urine

Specification

 Carbarsone oxide , its CAS NO. is 2490-89-3, the synonyms are 1-(p-Arsenophenyl)urea ; 1-(p-Arsenosophenyl)urea ; Arsine, 4-carbamidophenyloxo- ; Chemotherapy center No. 606 ; NSC 12693 ; Urea, 1-(p-arsenosophenyl) ; p-Carbamidophenyl arsenous acid ; p-Carbamidophenyl arsenous oxide ; Urea, (p-arsenosophenyl)- (8CI) .