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.

supplier list

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

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

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

Boc Sciences: Tel:1-631-5046093; Address: 45-16 Ramsey Road Shirley, NY 11967, USA

Shanghai Forever Synthesis Co.,Ltd.: Tel:86-21-61124658; Address: Nianjiabang Rd, Pudong, Shanghai

Zhejiang Haiqiang Chemical Co.,Ltd.: Tel:86-571-86960370; Address: 5/F, Around Town North Road,No. 10, Hangzhou, Zhejiang,China

Hangzhou Dayangchem Co., Ltd.: Tel:86-571-88938639; Address: 9/F Unit 2 ChangdiTorch Building, 259 #WenSan Road

Wuhan Dahua Weiye Pharmaceutical Co.,Ltd: Tel:86-27-59335372; Address: daijiashan 45,jiangan economic departmen zone,wuhan,hubei,China

Narong Technology Co., Limited: Tel:86-755-36309193; Address: Rom 502, Runlian Building, Yintian Rd, Bao'an District, Shenzhen City, Guangdong Prov.,China

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

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