ChemicalBook > CAS DataBase List > TOTU

TOTU

Product Name
TOTU
CAS No.
136849-72-4
Chemical Name
TOTU
Synonyms
TOTT;TOTU;TOTU,98%;TOTU;TOTU;TOTU USP/EP/BP;HOBT(MONOHYDROUS);TOTU Novabiochem;TOTU extrapure, 99%;O-[(Ethoxycarbonyl)c;O-[(Ethoxycarbonyl)cyanomethylenamino]-N,N,N',N'-t
CBNumber
CB4357993
Molecular Formula
C10H17BF4N4O3
Formula Weight
328.07
MOL File
136849-72-4.mol
More
Less

TOTU Property

Melting point:
145 °C (dec.)(lit.)
storage temp. 
2-8°C
solubility 
Soluble in water or 1% acetic acid
form 
Crystalline Powder
color 
White to yellow
Sensitive 
Moisture Sensitive
InChIKey
PZOBERLGEQHZDV-BPWZRWDXSA-M
CAS DataBase Reference
136849-72-4(CAS DataBase Reference)
More
Less

Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36-37/39
RIDADR 
1759
WGK Germany 
3
F 
8-10-21
HazardClass 
8
PackingGroup 
III
HS Code 
29280000
Toxicity
LD50 orally in Rabbit: 500 - 650 mg/kg
More
Less

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

More
Less

N-Bromosuccinimide Price

Sigma-Aldrich
Product number
8.51088
Product name
TOTU
Purity
Novabiochem?
Packaging
25g
Price
$84.3
Updated
2024/03/01
Sigma-Aldrich
Product number
8.51088
Product name
TOTU
Purity
Novabiochem?
Packaging
100g
Price
$300
Updated
2024/03/01
Sigma-Aldrich
Product number
02580
Product name
O-[(Ethoxycarbonyl)cyanomethylenamino]-N,N,N′,N′-tetramethyluronium tetrafluoroborate
Purity
≥98.0% (CHN)
Packaging
1g
Price
$44.1
Updated
2022/05/15
Sigma-Aldrich
Product number
02580
Product name
O-[(Ethoxycarbonyl)cyanomethylenamino]-N,N,N′,N′-tetramethyluronium tetrafluoroborate
Purity
≥98.0% (CHN)
Packaging
5g
Price
$245
Updated
2022/05/15
TCI Chemical
Product number
E0916
Product name
O-[(Ethoxycarbonyl)cyanomethyleneamino]-N,N,N',N'-tetramethyluronium Tetrafluoroborate
Purity
>98.0%(HPLC)(N)
Packaging
1g
Price
$18
Updated
2024/03/01
More
Less

TOTU Chemical Properties,Usage,Production

Chemical Properties

white to yellowish crystalline powder

Uses

Reactant for:
Watson-Crick pairing of oligonucleotides
Esterification of nucleosides to solid phase supports
Reagent for:
Synthesis of selective integrin avβ3 antagonists
Design and synthesis of double stranded DNA libraries
Preparation of conformationally contrained β-amino acid derivatives
Synthesis and application of methyleneoxy pseudopeptide building blocks

TOTU Preparation Products And Raw materials

Raw materials

Preparation Products

More
Less

TOTU Suppliers

Americas 1 Belgium 1 China 128 Europe 3 Germany 4 India 13 Israel 3 Japan 3 South Korea 1 Switzerland 4 United Kingdom 9 United States 30 Global 200
Suzhou Highfine Biotech Co., Ltd
Tel
0512-68311833 13962195826
Fax
0512-68417696
Email
wuhao@highfine.com
Country
China
ProdList
498
Advantage
75
Binhai gill polypeptide co. LTD
Tel
021-61263389 13524856427
Fax
WeChat630417570
Email
Joetang@glschina.com
Country
China
ProdList
9607
Advantage
58
J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
4006608290; 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40241
Advantage
62
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30132
Advantage
84
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24539
Advantage
81
ShangHai DEMO Chemical Co.,Ltd
Tel
400-021-7337 2355568890
Fax
0086-21-50182339
Email
sales@demochem.com
Country
China
ProdList
2572
Advantage
57
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44751
Advantage
61
Wuhan Chemwish Technology Co., Ltd
Tel
86-027-67849912
Fax
86-027-87531808
Email
sales@chemwish.com
Country
China
ProdList
35906
Advantage
56
GL Biochem (Shanghai) Ltd
Tel
21-61263452 13641803416
Fax
86-21-61263399
Email
ymbetter@glbiochem.com
Country
China
ProdList
9981
Advantage
64
Capot Chemical Co., Ltd
Tel
+86 (0) 571 85 58 67 18
Fax
0086-571-85864795
Email
sales@capotchem.com
Country
China
ProdList
18217
Advantage
66
Shanghai Sinch Parmaceuticals Tech. Co. Ltd.
Tel
+86-21-54098501
Fax
+86-21-54096319
Email
sales@sinch.com.cn
Country
China
ProdList
11605
Advantage
64
Adamas Reagent, Ltd.
Tel
400-6009262 16621234537
Fax
021-64823266
Email
zhangsn@titansci.com
Country
China
ProdList
14113
Advantage
59
Accela ChemBio Co.,Ltd.
Tel
021-50795510 4000665055
Fax
021-50795055
Email
sales@accelachem.com
Country
China
ProdList
11660
Advantage
64
Shanghai Hanhong Scientific Co.,Ltd.
Tel
021-54306202 13764082696;
Email
info@hanhongsci.com
Country
China
ProdList
42982
Advantage
64
Beijing Isomersyn Technology CO;LTD
Tel
010-82954736 13391601435
Email
sales@isomersyn.com
Country
China
ProdList
3296
Advantage
57
Shandong Xiya Chemical Co., Ltd
Tel
13355009207 13355009207
Fax
0539-6365991
Email
3007715519@qq.com
Country
China
ProdList
18739
Advantage
57
BEST-REAGENT
Tel
400-1166-196 18981987031
Fax
028-84555506 800101999
Email
cdhxsj@163.com
Country
China
ProdList
11726
Advantage
57
China Langchem Inc.
Tel
0086-21-58956006
Fax
0086-21-58956100
Country
China
ProdList
7815
Advantage
57
Maya High Purity Chemicals
Tel
+86 (573) 82222445 (0)18006601000 452520369
Fax
+86 (573) 82222643
Email
sales@maya-r.com
Country
China
ProdList
11714
Advantage
57
ZhengZhou HuaWen Chemical Co.Ltd
Tel
0370-2785118 15343847665
Fax
QQ：3470079902
Email
huawenchem@163.com
Country
China
ProdList
3206
Advantage
55
Shanghai Nuohey Chemical Co., Ltd.
Tel
021-52212593 13761626812
Fax
+86 (21) 51062076
Email
sales@nuohey.com
Country
China
ProdList
7135
Advantage
60
Chengdu Ai Keda Chemical Technology Co., Ltd.
Tel
4008-755-333 18080918076
Fax
028-86757656
Email
800078821@qq.com
Country
China
ProdList
9725
Advantage
55
Thermo Fisher Scientific
Tel
800-810-5118
Fax
+86-10-84193589
Email
cnchemical@thermofisher.com
Country
China
ProdList
17779
Advantage
75
Beijing HuaMeiHuLiBiological Chemical
Tel
010-56205725
Fax
010-65763397
Email
waley188@sohu.com
Country
China
ProdList
12338
Advantage
58
Shanghai Jian Chao Chemical Technology Co., Ltd.
Tel
021-50430803 18017383231
Fax
qq：2817624287
Email
983544897@qq.com
Country
China
ProdList
9352
Advantage
55
9ding chemical ( Shanghai) Limited
Tel
4009209199
Fax
86-021-52271987
Email
sales@9dingchem.com
Country
China
ProdList
22519
Advantage
55
Shanghai Aladdin Bio-Chem Technology Co.,LTD
Tel
18521735133 18521732826;
Fax
021-50323701
Email
market@aladdin-e.com
Country
China
ProdList
25015
Advantage
65
Shanghai Medpep Co., Ltd
Tel
021-65566949 13901795941
Fax
86-21-51861665
Email
market@medpep.com
Country
China
ProdList
176
Advantage
66
Cantotech Chemicals, Ltd.
Tel
86-0755-86635001
Fax
86-0755-22642228
Email
cantotech@126.com
Country
China
ProdList
4576
Advantage
55
Shanghai Yolne Chemical Co., Ltd.
Tel
021-62960152
Fax
021-52212593
Email
934678158@qq.com
Country
China
ProdList
9906
Advantage
55
Wuxi Zhangkun Biochemical Technology Co., Ltd.
Tel
+86 0510-85629785
Fax
+86 0510-85625359
Country
China
ProdList
2331
Advantage
58
Shanghai BeiZhuo Biotech Co., Ltd.
Tel
021-61119791,13386096464
Fax
021-50190009
Email
bzswkf@foxmail.com
Country
China
ProdList
3924
Advantage
50
Shanghai Hongbang Pharmaceutical Co., Ltd.
Tel
021-64975436 18917636693
Fax
021-24280809
Email
1377976036@qq.com
Country
China
ProdList
297
Advantage
55
Bide Pharmatech Ltd.
Tel
400-1647117 15221909166
Fax
+86-21-61629029
Email
product02@bidepharm.com
Country
China
ProdList
41438
Advantage
60
NINGBO INNO PHARMCHEM CO.,LTD.
Tel
86-574-27787657
Fax
86-574-27912196
Email
info@dearchem.com
Country
China
ProdList
4619
Advantage
58
Shanghai YuLue Chemical Co., Ltd.
Tel
021-60345187 13671753212
Fax
021-34702061
Email
lzz841106@aliyun.com
Country
China
ProdList
10287
Advantage
55
Shanghai Xingui Biotechnology Co., Ltd.
Tel
17501653713 17501653715
Email
xingui2022@126.com
Country
China
ProdList
10033
Advantage
58
Sigma-Aldrich
Tel
021-61415566 800-8193336
Email
orderCN@merckgroup.com
Country
China
ProdList
51471
Advantage
80
Huzhou G-ing Pharmaceutical Co., Ltd.
Tel
0572-2057072 18057208770
Fax
0572-2310569
Country
China
ProdList
85
Advantage
55
Codow Chemical Co.,Ltd.
Tel
18620099427 18620099427
Fax
+86-20-62619665
Email
amy@howeipharm.com
Country
China
ProdList
1751
Advantage
55
Shanghai GL Peptide Ltd.
Tel
+86-21-61263310; 13764994101 13764994101
Fax
021-61263399
Email
fisherwang@glschina.com
Country
China
ProdList
8457
Advantage
55
Henan CoreyChem Co., Ltd
Tel
0371-86658258
Fax
0371-60996044
Email
info@coreychem.com
Country
China
ProdList
10457
Advantage
58
Shanghai Xilong Biochemical Technology Co., Ltd.
Tel
021-52907766-8042
Fax
021-52906523
Country
China
ProdList
9947
Advantage
58
Shanghai YuanYe Biotechnology Co., Ltd.
Tel
021-61312847; 18021002903
Fax
QQ:3008007432
Email
3008007409@qq.com
Country
China
ProdList
27322
Advantage
60
Beijing Solarbio Science & Tecnology Co., Ltd.
Tel
010-50973130 4009686088
Email
3193328036@qq.com
Country
China
ProdList
29797
Advantage
68
Nanjing Peptide Biotech Ltd.
Tel
025-58361106-805 13082558573
Fax
025-58361106-806
Email
liugang@njpeptide.com
Country
China
ProdList
9961
Advantage
55
Hubei Hongxin Ruiyu Fine Chemical Co., Ltd.
Tel
027-65526929 15102793023
Fax
027-65526669
Email
hbhxry@163.com
Country
China
ProdList
1351
Advantage
55
Amatek Scientific Co. Ltd.
Tel
0512-56316828
Fax
0512-56316826
Email
info@amateksci.com
Country
China
ProdList
28822
Advantage
58
Shandong Ono Chemical Co., Ltd.
Tel
0539-6362799 20）
Fax
0539-6362799（To 20）
Country
China
ProdList
9998
Advantage
58
More
Less

View Lastest Price from TOTU manufacturers

Hebei Duling International Trade Co. LTD
Product
TOTU 136849-72-4
Price
US $24.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
5000 tons
Release date
2023-01-31
Henan Aochuang Chemical Co.,Ltd.
Product
TOTU 136849-72-4
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
98%
Supply Ability
1ton
Release date
2022-09-26
Zhuozhou Wenxi import and Export Co., Ltd
Product
TOTU 136849-72-4
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-07-10

136849-72-4, TOTURelated Search:

2-(1-Oxy-pyridin-2-yl)-1,1,3,3-tetramethylisothiouronium tetrafluoroborate 2-(2-Pyridon-1-yl)-1,1,3,3-tetramethyluronium tetrafluoroborate 1-(3-Dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride Fluoroboric acid BORON TRIFLUORIDE (CA.10% (CA.1.3 M) IN& FLUOROBORIC ACID DIETHYL ETHER COMPLEX Boron trifluoride acetonitrile complex FLUOROBORIC ACID DIMETHYL ETHER COMPLEX TOTU BORON TRIFLUORIDE, N-PROPANOL REAGENT 15

  • O-[(ETHOXYCARBONYL)CYANOMETHYLENAMINO]-N,N,N',N'-TETRAMETHYLURONIUM TETRAFLUOROBORATE
  • O-[(ETHOXYCARBONYL)-CYANOMETHYLENEAMINO]-1,1,3,3-TETRAMETHYLURONIUM TETRAFLUOROBORATE
  • O-((Ethoxycarbonyl)cyanomethyleneamino)-N,N,N',N'-tetramethyluronium BF4
  • O-[(ETHOXYCARBONYL)CYANOMETHYLENEAMINO]-N,N,N',N'-TETRAMETHYLURONIUM TETRAFLUOROBORATE
  • O-[(ETHOXYCARBOXYL)CYANOMETHYLENEAMINO]-N,N,N',N'-TETRAMETHYLURONIUM TETRAFLUOROBORATE
  • O-(CYANO(ETHOXYCARBONYL)METHYLENAMINO)-1,1,3,3-TETRAMETHYLURONIUM TETRAFLUOROBORATE
  • TOTU
  • 2-CYANOETHOXYCARBONYLMETHYLIDENEAMINO-1,1,3,3-TETRAMETHYLURONIUMTETRAFLUOROBORATE
  • O-[(ETHOXYCARBONYL) CYANOMETHYLENAMINO] N,N,N'',N''-TETRAMETHYLURONIUM TETRAFLUOROBORATE (TOTU)
  • O-((ETHOXYCARBONYL)CYANOMETHYLENEAMINO)-N,N,N'',N''-TETRAMETHYLURONIUM TETRAFLUOROBORATE(TOTU)
  • TOTT
  • TOTU (O-[(ETHOXYCARBONYL)- CYANOMETHYLENEAMINO]- 1,1,3,3-TETRAMETHYLURONIUM TETRAFLUOROBORATE)
  • HOBT(MONOHYDROUS)
  • O-[(Ethoxycarbonyl)cyanomethylenamino]-N,N,N',N'-tetramethyluronium tetrafluorob
  • O-[(ETHOXYCARBONYL)CYANOMETHYLENAMINO]-N,N,N',N'-TETRAMETHYL
  • TOTU:O-[(ETHOXYCARBONYL)CYANOMETHYLENAMINO]-N,N,N',N'-TETRAMETHYLURONIUM TETRAFLUOROBORATE
  • O-[(Ethoxycarbonyl)cyanomethylenamino]-N,N,N',N'-t
  • O-[(ETHOXYCARBONYL)CYANOMETHYLENAMINO]-N,N,N',N'-TETRAMETHYLURONIUM TETRAFLUORIDE
  • O-Cyanoethoxycarbonylmethylideneamino-1,1,3,3-tetr
  • O-[(Ethoxycarbonyl)c
  • O- (Ethoxycarbonyl)cyanoMethylenaMino -N,N,N',N'-tetraMethyluroniuM
  • O-((Ethoxycarbonyl)cyanomethylenamino)-N,N,N'N'-tetramethyluroni
  • TOTU, O-[(Ethoxycarbonyl)cyanomethylenamino]-N,N,N',N'-tetramethyluronium
  • O-((Ethoxycarbonyl)cyanomethyleneamino)-N,N,N',N'-tetramethyluronium BF4,98%
  • O-(Ethoxycarbonyl)cyanomethylenaminoü-N,N,N',N'-tetramethyluronium tetrafluoroborate, 97%
  • O-[(ethoxycarbonyl)cyanomethyleneamino]-N,N,N',N'-tetramet
  • N-[[[(1-Cyano-2-ethoxy-2-oxoethylidene)amino]oxy](dimethylamino)methylene]-N-methyl-methanaminium tetrafluoroborate
  • TOTU,98%
  • TOTU;TOTU
  • TOTU Novabiochem
  • O-[(Ethoxycarbonyl)cyanomethyleneamino]-N,N,N',N'-tetramethyluroniumTetrafluoroborate&gt
  • Methanaminium, N-[[[(1-cyano-2-ethoxy-2-oxoethylidene)amino]oxy](dimethylamino)methylene]-N-methyl-, tetrafluoroborate(1-) (1:1)
  • TOTU USP/EP/BP
  • TOTU extrapure, 99%
  • N-(6-Cyano-2-methyl-7-oxo-4,8-dioxa-2,5-diazadec-5-en-3-ylidene)-N-methylmethanaminium tetrafluoroborate
  • TOTU O-[(Ethoxycarbonyl)cyanoMethylenaMino]-N,N,N',N'-tetra
  • 136849-72-4
  • 136849-72-1
  • 136879-72-4
  • C12H17BF4N4O4
  • C10H17N4O3BF4
  • C10H17BF4N4O3
  • C2H5O2CCCNNOCNCH32NCH32BF4
  • Coupling
  • Synthetic Reagents
  • Phosphonium/Uronium/Formamidinium
  • Coupling Reagent