2,3-二氢-5,6-二甲基-1,4-二硫英1,1,4,4-四氧化物

Name: 2,3-二氢-5,6-二甲基-1,4-二硫英1,1,4,4-四氧化物
Brand: 济南圣和化工有限公司

CAS 55290-64-7C6H10O4S2MW 210.3

2,3-二氢-5,6-二甲基-1,4-二硫英1,1,4,4-四氧化物，CAS 登记号 55290-64-7，由济南圣和化工有限公司现货供应，可提供纯度按批次COA提供(不公开发布) 的规格，下游主要用于无机化学品。支持样品与小批量试用，批量价格请联系我们获取，验收以批次 COA 为准。

规格参数

CAS号55290-64-7

分子式C6H10O4S2

分子量210.3

熔点167 to 169 °C

LogPLog Kow = -0.17

纯度按批次COA提供(不公开发布)

包装按订单/批次确认(不公开发布)

应用领域无机化学品

类别无机化学品

用途与场景

无机化学品

包装与供货

包装规格按订单/批次确认(不公开发布)

纯度规格按批次COA提供(不公开发布)

储存条件密封、阴凉干燥处保存

供货周期现货/按订单安排

文件与支持

每批随货提供 COA；可按需提供 MSDS 及技术文件。邮件注明产品名称与 CAS 号，一个工作日内回复报价。

常见问题

在哪里能查到 2,3-二氢-5,6-二甲基-1,4-二硫英1,1,4,4-四氧化物的 CAS 号？

本页已列出 2,3-二氢-5,6-二甲基-1,4-二硫英1,1,4,4-四氧化物的 CAS 号：55290-64-7，可与随货 COA 核对。

可以提供哪些规格和包装？

常见纯度为按批次COA提供(不公开发布)，包装形式为按订单/批次确认(不公开发布)，特殊规格可在询价时说明。

2,3-二氢-5,6-二甲基-1,4-二硫英1,1,4,4-四氧化物一般用在什么产品里？

主要涉及无机化学品。

下单流程是怎样的？

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PubChem 公开数据

Description

2,3-dihydro-5,6-dimethyl-1,4-dithiin 1,1,4,4-tetraoxide · CAS 55290-64-7 · C6H10O4S2. UNII HLV651AHBB. Melting Point: 167 to 169 °C; Solubility: In water, 4.6 g/l at 25 °C.; Density: 1.59 g/cu cm at 23 °C.

Identification

CAS Registry Number	55290-64-7
PubChem CID	41385
Molecular formula	C6H10O4S2
IUPAC name	5,6-dimethyl-2,3-dihydro-1,4-dithiine 1,1,4,4-tetraoxide
UNII (FDA)	HLV651AHBB

Computed Descriptors

Molecular Weight	210.3
XLogP3	-0.5
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	0
Exact Mass	210.00205114
Monoisotopic Mass	210.00205114
Topological Polar Surface Area	85
Heavy Atom Count	12
Formal Charge	0

Physical & Chemical Properties

Melting Point	167 to 169 °C
Solubility	In water, 4.6 g/l at 25 °C.
Density	1.59 g/cu cm at 23 °C
Vapor Pressure	0.00000038 [mmHg]
Vapor Pressure	3.83X10-7 mm Hg at 25 °C
LogP	Log Kow = -0.17
LogP	-0.17
Dissociation Constants	pKa = 10.88

Physical description & handling notes

Dimethipin appears as colorless crystals with a mild odor. Used as a defoliant.
White solid; [Merck Index] Colorless solid; [CAMEO] White crystalline solid; [MSDSonline]
Long white needles from water.
White crystalline solid /TECHNICAL GRADE/
Mild odor
In acetonitrile 180 g/l, methanol 10.7 g/l, toluene 8.979 g/l (all at 25 °C).

GHS Hazard Classification

Reported hazard statements	H302 (100%)

H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]

P264, P270, P301+P317, P330, and P501 (click each P-code to see the statement)

Documented Uses

Used as plant growth regulator, defoliant (cotton, nursery stock, rubber trees, dry beans, and vines), and desiccant (seed harvest of maize, rice, oilseed rape, flax, canola, and sunflowers); [HSDB] Registered as a cotton growth regulator and herbicide for weeds in nursery stock except apples; [Reference #1]
Defoliation of cotton, nursery stock, rubber trees, and vines. Potato haulm desiccant. Reduces seed moisture content at harvest of maize, rice, oilseed rape, flax and sunflowers.
Defoliates dry beans; used as a desiccant for seed of canola.
Acetoin + 1,2-ethanedithiol (sulfide formation/oxidation)
88,000 pounds active ingredient/year in 1989.
Defoliant and desiccant. Interferes with protein synthesis in plant epidermis.

Synonyms

DIMETHIPIN; 55290-64-7; Caswell No. 472AA; Harvade-5F; Dimethipin [ISO]; Dimethipin [ANSI:BSI:ISO]; UNI-N252; DTXSID0024052; HSDB 6615; UNII-HLV651AHBB; HLV651AHBB; EINECS 259-572-7; EPA Pesticide Chemical Code 118901; 2,3-Dihydro-5,6-dimethyl-1,4-dithiin 1,1,4,4-tetraoxide; DIMETHIPIN [HSDB]; DTXCID704052

Frequently Asked Questions

What are the CAS number and molecular formula of 2,3-dihydro-5,6-dimethyl-1,4-dithiin 1,1,4,4-tetraoxide?

CAS 55290-64-7; molecular formula C6H10O4S2; molecular weight — g/mol.

What other names is 2,3-dihydro-5,6-dimethyl-1,4-dithiin 1,1,4,4-tetraoxide known by?

DIMETHIPIN, 55290-64-7, Caswell No. 472AA, Harvade-5F, Dimethipin [ISO], Dimethipin [ANSI:BSI:ISO].

Is 2,3-dihydro-5,6-dimethyl-1,4-dithiin 1,1,4,4-tetraoxide classified as hazardous?

Hazard statements reported: H302.

What are the key physical properties of 2,3-dihydro-5,6-dimethyl-1,4-dithiin 1,1,4,4-tetraoxide?

Melting Point: 167 to 169 °C; Solubility: In water, 4.6 g/l at 25 °C.; Density: 1.59 g/cu cm at 23 °C; Vapor Pressure: 0.00000038 [mmHg].

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.

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