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3H-Naphtho[2,1-b]pyran,3,3-diphenyl- cas no:4222-20-2

Synonyms: 2,2-Diphenyl-5,6-benzo(2H)chromene;3,3-Diphenyl-3H-naphtho[2,1-b]pyran;Variacrol Yellow L;

Identification
Name3H-Naphtho[2,1-b]pyran,3,3-diphenyl-
CAS4222-20-2
Synonyms2,2-Diphenyl-5,6-benzo(2H)chromene;3,3-Diphenyl-3H-naphtho[2,1-b]pyran;Variacrol Yellow L;
Molecular FormulaC25H18O
Molecular Weight334.41
Chemical Properties
AppearancePhotochromic dye
refractive index1.679
Safety Data

Risk R36/37/38

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Nankai University Fine Chemical Lab
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Hangzhou Dayangchem Co., Ltd.
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Shanghai Meicheng Chemical Co., Ltd.
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Jinan Haohua Industry Co., Ltd.
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Jinan Haohua Industry Co., Ltd.
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Address: No.59 Gongye South RD
Nankai University Fine Chemical Lab.
Tel:0086-22-23503115
Address: P.O. Box 40, Balitai Postoffice, Nankai District, Tianjin, P.R.C.
HangZhou Peak Chemical Co.,Ltd
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Ganolix Pharm Co.,Ltd
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Hangzhou J&H Chemical Co., Ltd
Tel:86-571-87396430
Address: No.200 Zhenhua Rd.Xihu Industrial Park, Hangzhou 310030, China

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