81-30-1|[2]Benzopyrano[6,5,4-def][2]benzopyran-1,3,6,8-tetroneProducts Supply

[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;

Identification

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

Chemical Properties

refractive index1.781
Sensitive Moisture Sensitive

Safety Data

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
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.

Toxicity

1.	orl-rat LD50:7400 mg/kg	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.	itr-rat LDLo:50 mg/kg	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.	orl-mus LD50:7100 mg/kg	85GMAT Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure Izmerov, N.F., et al.,Moscow, USSR.: Centre of International Projects, GKNT,1982,90.

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City Chemical LLC: Tel:+1-(800)-248-2436; Address: 139 Allings Crossing Road, West Haven, Connecticut 06516,

Beijing JHYB Pharmaceutical Technology Co., Ltd: Tel:(010)-88593845,88592946; Address: No: 35,Balizhuang,Haidian District, Haidian, Beijing 100039,

Yield Pharma Co., Ltd.: Tel:+86-(512)-62518913; Address: 1340 Sispark 1355 Jinjihu Avenue Suzhou Industrial Park, Suzhou, Jiangsu 215011,

Changchun Banhe Technology Co., Ltd.: Tel:+86-(431)-8517-1876; Address: Yi jing 7-402, No.2255 Qianjin Street,High-technology Industry, Development Area, Changchun City,

Sino World Chemical Canada Inc.: Tel:+86-(10)-6493-1655; Address: A-3 Jianguomenwai Street, Beijing 100020,

Funan Chemical Industrial Co., Ltd.: Tel:+86-(310)-892-1463; Address: No.6 of Xizhubao Industrial Zone, Quzhou, Hebei 057250,

Beijing Multi Technology Co., Ltd: Tel:+86-10-6787 9957,010-6788 8851; Address: No.3,rongjing east street Beijing Economic technological

Beijing Ouhe Technology Co., Ltd: Tel:+86-10-51280831 86-10-88459036 +86-10-80929938; Address: 19# Minhanglu, Haidian, Beijing, China

Hubei Research Institute of Chemistry: Tel:+86-27-87422225; Address: No.30 Guanshan Road, Wuhan, Hubei, P. R. China

HangZhou Peak Chemical Co.,Ltd: Tel:+86-571-88233073; Address: Rm. 3-502,Building 3 Tucuiyuan,Lakeside Garden,No.176 Wenyi West Road, HangZhou,China

PRINCETON: Tel:732 355 9920 -102; Address: Princeton Corporate Plaza 11 Deer Park Drive, Ste. 114 Monmouth Junction, NJ 08852

Wujiang Yingchuang Chemical Co., Ltd.: Tel:+86-(25)-8645 8768; Address: 215 Ying Tian Da Street, JianYe, Nanjing, Jiangsu 210017,

Hangzhou Neway Chemicals Co., Ltd.: Tel:86-571-85095566; Address: Address: RM 803, Qinglian Bilding, No 139, Qingchun Road, Hangzhou

Shanghai Hope Chem Co., Ltd.: Tel:86-21-61723543; Address: Room508, Building1, No.88 CaiLun Road Zhangjiang H

Shenzhen Feiming Science and Technology Co., Ltd.: Tel:86-755-85232577; Address: Longcheng street

[2]Benzopyrano[6,5,4-def][2]benzopyran-1,3,6,8-tetrone cas no:81-30-1

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