Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 1,3,3-Trimethylindolino-β-naphthopyrylospiran
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

1592-43-4

1592-43-4 structure

1592-43-4 structure

Name: 1,3,3-Trimethylindolino-β-naphthopyrylospiran
Chemical Name: 1',3',3'-trimethylspiro[benzo[f]chromene-3,2'-indole]
CAS Number: 1592-43-4
Molecular Formula: C₂₃H₂₁NO
Molecular Weight: 327.41900
Create Date: 2018-12-23 15:40:09
Modify Date: 2025-08-25 17:39:15

Name	1',3',3'-trimethylspiro[benzo[f]chromene-3,2'-indole]
Synonyms	HMS641C21 spiro<1,3,3-trimethyl-indoline-naphthopyrane> 1,3,3-Trimethylindolino-β-naphthopyrylospiran [Photochromic Compound] 1,3-dihydro-1,3,3-trimethylspiro<2H-indole-2,2'-<3H>-naphth<2,1-b>pyran> 1,3-Dihydro-1,3,3-trimethylspiro<2H-indole-2,2'<3H>naphth<1,2b>pyran>

Density	1.22g/cm3
Boiling Point	492.7ºC at 760 mmHg
Melting Point	174ºC
Molecular Formula	C₂₃H₂₁NO
Molecular Weight	327.41900
Flash Point	142.8ºC
Exact Mass	327.16200
PSA	12.47000
LogP	5.43430
Vapour Pressure	7.49E-10mmHg at 25°C
Index of Refraction	1.699

HS Code	2934999090

118-12-7 structure

118-12-7

708-06-5 structure

708-06-5

~63%

1592-43-4 structure

1592-43-4

Literature: Connors; Jozwiakowski Journal of Pharmaceutical Sciences, 1987 , vol. 76, # 12 p. 892 - 897

708-06-5 structure

708-06-5

~%

1592-43-4 structure

1592-43-4

Literature: Cahiers Phys., , # 52 p. 3,43, 45

68573-33-1 structure

68573-33-1

~%

1592-43-4 structure

1592-43-4

Literature: Russian Chemical Bulletin, , vol. 60, # 3 p. 456 - 464

Precursor 3
118-12-7 708-06-5 68573-33-1
DownStream 2
20200-86-6 84-83-3

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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