[2]Benzopyrano[6,5,4-def][2]benzopyran-1,3,6,8-tetrone cas no:81-30-1
Synonyms: 1,4,5,8-Naphthalenetetracarboxylic1,8:4,5-dianhydride (7CI,8CI);Naphthalenetetracarboxylic dianhydride (6CI);1,4,5,8-Naphthalenetetracarboxylic acid dianhydride;1,8:4,5-Naphthalenetetracarboxylic dianhydride;2,7-Dioxapyrene-1,3,6,8-tetrone;NSC 84241;NTCDA;Naphthalenetetracarboxylicanhydride;Naphthalic 1,8:4,5-dianhydride;
Name[2]Benzopyrano[6,5,4-def][2]benzopyran-1,3,6,8-tetrone
CAS81-30-1
Synonyms1,4,5,8-Naphthalenetetracarboxylic1,8:4,5-dianhydride (7CI,8CI);Naphthalenetetracarboxylic dianhydride (6CI);1,4,5,8-Naphthalenetetracarboxylic acid dianhydride;1,8:4,5-Naphthalenetetracarboxylic dianhydride;2,7-Dioxapyrene-1,3,6,8-tetrone;NSC 84241;NTCDA;Naphthalenetetracarboxylicanhydride;Naphthalic 1,8:4,5-dianhydride;
EINECS(EC#)201-342-5
Molecular FormulaC14H4O6
Molecular Weight268.18
refractive index1.781
Sensitive Moisture Sensitive
Hazard Xi:Irritant;
Risk R36/37/38
Safety
Poison by intratracheal route. Mildly toxic by ingestion. When heated to decomposition it emits acrid smoke and irritating fumes. See also ANHYDRIDES.
Hazard Codes:
Xi: Irritant .gif)
Risk Statements about 1,4,5,8-Naphthalenetetracarboxylic acid-1,8:4,5-dianhydride (81-30-1):
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements about 1,4,5,8-Naphthalenetetracarboxylic acid-1,8:4,5-dianhydride (81-30-1):
S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36 Wear suitable protective clothing.
| 1. |
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orl-rat LD50:7400 mg/kg
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85GMAT Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure Izmerov, N.F., et al.,Moscow, USSR.: Centre of International Projects, GKNT,1982,90. |
| 2. |
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itr-rat LDLo:50 mg/kg
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85GMAT Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure Izmerov, N.F., et al.,Moscow, USSR.: Centre of International Projects, GKNT,1982,90. |
| 3. |
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orl-mus LD50:7100 mg/kg
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85GMAT Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure Izmerov, N.F., et al.,Moscow, USSR.: Centre of International Projects, GKNT,1982,90. |
