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83-72-7

83-72-7 structure
83-72-7 structure

Name lawsone
Synonyms C.I. Natural Orange 6
MFCD00001678
2-Hydroxy-1,4-naphthochinone
2-Hydroxy-1,4-naphoquinone
EINECS 201-496-3
2-Hydroxy-1,4-naphthoquinone
hydroxynaphthoquinone
Natural Orange 6
1,4-Naphthalenedione, 2-hydroxy-
2-Hydroxy-p-naphthoquinone
2-hydroxynaphthalene-1,4-dione
hennotannic acid
lawsone
2-Hydroxy-1,4-napthoquinone
Description Lawsone is a naphthoquinone dye isolated from leaves of Lawsonia inermis that shows antimicrobial and antioxidant activity[1].
Related Catalog
References

[1]. Tripathi RD, et al. A fungitoxic principle from the leaves of lawsonia inermis lam. Experientia. 1978 Jan 15;34(1):51-2.

Density 1.5±0.1 g/cm3
Boiling Point 339.9±42.0 °C at 760 mmHg
Melting Point 192-195 °C (dec.)(lit.)
Molecular Formula C10H6O3
Molecular Weight 174.153
Flash Point 173.6±24.4 °C
Exact Mass 174.031693
PSA 54.37000
LogP 1.55
Vapour Pressure 0.0±0.8 mmHg at 25°C
Index of Refraction 1.681
Water Solubility 2 g/L (20 ºC)

CHEMICAL IDENTIFICATION

RTECS NUMBER :
QL8200000
CHEMICAL NAME :
1,4-Naphthoquinone, 2-hydroxy-
CAS REGISTRY NUMBER :
83-72-7
BEILSTEIN REFERENCE NO. :
1565260
LAST UPDATED :
199701
DATA ITEMS CITED :
6
MOLECULAR FORMULA :
C10-H6-O3
MOLECULAR WEIGHT :
174.16
WISWESSER LINE NOTATION :
L66 BV EVJ CQ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
100 mg/kg
TOXIC EFFECTS :
Tumorigenic - active as anti-cancer agent
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
522 mg/kg/6D-I
TOXIC EFFECTS :
Kidney, Ureter, Bladder - changes in tubules (including acute renal failure, acute tubular necrosis) Blood - changes in spleen Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - dehydrogenases

MUTATION DATA

TEST SYSTEM :
Rodent - mouse
DOSE/DURATION :
50 mg/kg
REFERENCE :
MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 343,61,1995 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X9568 No. of Facilities: 227 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 2271 (estimated) No. of Female Employees: 1817 (estimated)
Symbol GHS07
GHS07
Signal Word Warning
Hazard Statements H315-H319-H335
Precautionary Statements P261-P305 + P351 + P338
Personal Protective Equipment dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes Xn:Harmful;
Risk Phrases R22;R36;R68
Safety Phrases S26-S37/39-S36/37/39
RIDADR NONH for all modes of transport
WGK Germany 3
RTECS QL8200000
Packaging Group II
HS Code 2914690090
HS Code 2914690090
Summary 2914690090 other quinones。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%