Shanghai Nianxing Industrial Co., Ltd
China
Product Name: BOC-TRANS-4-TOSYLOXY-L-PROLINE METHYL ESTER
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: BOC-TRANS-4-TOSYLOXY-L-PROLINE METHYL ESTER
Price: ￥738.0/250mg ￥2338.0/1g
Purity: 98.0%
Stocking Period: Inquiry
Contact: Liu jia
Email: 2130147988@qq.com

Chengdu Pukang Biotechnology Co., Ltd.
China
Product Name: BOC-TRANS-4-TOSYLOXY-L-PROLINE METHYL ESTER
Price: ￥Inquiry/10g
Purity: 98.0%
Stocking Period: Inquiry
Contact: Lihua Yang
Email: sales@pu-kang.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: BOC-TRANS-4-TOSYLOXY-L-PROLINE METHYL ESTER
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

88043-21-4

88043-21-4 structure

88043-21-4 structure

Name: BOC-TRANS-4-TOSYLOXY-L-PROLINE METHYL ESTER
Chemical Name: N-Boc-Trans-4-Tosyloxy-L-Proline Methyl Ester
CAS Number: 88043-21-4
Molecular Formula: C₁₈H₂₅NO₇S
Molecular Weight: 399.459
Catalog: Biochemical Amino acids and their derivatives Proline derivatives
Create Date: 2018-07-14 20:43:18
Modify Date: 2025-08-26 16:44:11

Name	N-Boc-Trans-4-Tosyloxy-L-Proline Methyl Ester
Synonyms	1-O-tert-butyl 2-O-methyl (2S,4R)-4-(4-methylphenyl)sulfonyloxypyrrolidine-1,2-dicarboxylate 2-Methyl 1-(2-methyl-2-propanyl) (2S,4R)-4-{[(4-methylphenyl)sulfonyl]oxy}-1,2-pyrrolidinedicarboxylate 1,2-Pyrrolidinedicarboxylic acid, 4-[[(4-methylphenyl)sulfonyl]oxy]-, 1-(1,1-dimethylethyl) 2-methyl ester, (2S,4R)-

Density	1.3±0.1 g/cm3
Boiling Point	508.1±50.0 °C at 760 mmHg
Melting Point	77.0 to 81.0 °C
Molecular Formula	C₁₈H₂₅NO₇S
Molecular Weight	399.459
Flash Point	261.1±30.1 °C
Exact Mass	399.135162
PSA	107.59000
LogP	1.77
Vapour Pressure	0.0±1.3 mmHg at 25°C
Index of Refraction	1.554
Storage condition	2-8°C

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H319
Precautionary Statements	P305 + P351 + P338
Hazard Codes	Xi
Risk Phrases	36
Safety Phrases	26
RIDADR	NONH for all modes of transport
HS Code	2933990090

74844-91-0 structure

74844-91-0

98-59-9 structure

98-59-9

~99%

88043-21-4 structure

88043-21-4

Literature: Bioorganic and Medicinal Chemistry Letters, , vol. 14, # 24 p. 6107 - 6111

40350-82-1 structure

40350-82-1

98-59-9 structure

98-59-9

~%

88043-21-4 structure

88043-21-4

Literature: EP1308439 A1, ;

144527-44-6 structure

144527-44-6

98-59-9 structure

98-59-9

~90%

88043-21-4 structure

88043-21-4

Literature: Angewandte Chemie - International Edition, , vol. 52, # 36 p. 9539 - 9543 Angew. Chem., , vol. 125, # 36 p. 9718 - 9722

40216-83-9 structure

40216-83-9

~%

88043-21-4 structure

88043-21-4

Literature: US2013/115194 A1, ;

24424-99-5 structure

24424-99-5

~%

88043-21-4 structure

88043-21-4

Literature: US2013/115194 A1, ;

51-35-4 structure

51-35-4

~%

88043-21-4 structure

88043-21-4

Literature: Angewandte Chemie - International Edition, , vol. 52, # 36 p. 9539 - 9543 Angew. Chem., , vol. 125, # 36 p. 9718 - 9722

Precursor 5
74844-91-0 98-59-9 40216-83-9 24424-99-5
51-35-4
DownStream 4
487048-28-2 194163-91-2 121148-01-4 203866-16-4

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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