Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2-Butyne-1,4-diol,1,4-bis(N-phenylcarbamate)
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang

21840-67-5

21840-67-5 structure

21840-67-5 structure

Name: 2-Butyne-1,4-diol,1,4-bis(N-phenylcarbamate)
Chemical Name: 4-(phenylcarbamoyloxy)but-2-ynyl N-phenylcarbamate
CAS Number: 21840-67-5
Molecular Formula: C₁₈H₁₆N₂O₄
Molecular Weight: 324.33100
Create Date: 2017-11-07 01:14:05
Modify Date: 2024-02-04 12:16:17

Name	4-(phenylcarbamoyloxy)but-2-ynyl N-phenylcarbamate
Synonyms	1,4-bis-phenylcarbamoyloxy-but-2-yne but-2-yne-1,4-diyl bis(phenylcarbamate) 1,4-Bis-phenylcarbamoyloxy-but-2-in

Density	1.32g/cm3
Boiling Point	427.1ºC at 760mmHg
Molecular Formula	C₁₈H₁₆N₂O₄
Molecular Weight	324.33100
Flash Point	212.1ºC
Exact Mass	324.11100
PSA	76.66000
LogP	3.63320
Vapour Pressure	1.68E-07mmHg at 25°C
Index of Refraction	1.651

HS Code	2924299090

16669-40-2 structure

16669-40-2

74497-02-2 structure

74497-02-2

~97%

21840-67-5 structure

21840-67-5

Literature: Ramesh; Chandrasekaran Organic Letters, 2005 , vol. 7, # 22 p. 4947 - 4950

110-65-6 structure

110-65-6

103-71-9 structure

103-71-9

~%

21840-67-5 structure

21840-67-5

Literature: Horino, Yoshikazu; Kimura, Masanari; Tanaka, Shuji; Okajima, Toshiya; Tamaru, Yoshinao Chemistry - A European Journal, 2003 , vol. 9, # 11 p. 2419 - 2438

Precursor 3
16669-40-2 110-65-6 103-71-9
DownStream 0

HS Code	2924299090
Summary	2924299090. other cyclic amides (including cyclic carbamates) and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%