CAS 148-25-4; 铬变酸; 1,8-Dihydroxynaphthalene-3,6-disulfonic acid

CAS:

148-25-4

分子式:

C10H8O8S2

分子量:

320.30

中文名称:

铬变酸

4,5-二羟基-2,7-萘二磺酸

变色酸

1,8-二羟基萘-3,6-二磺酸

比色酸

英文名称:

1,8-Dihydroxynaphthalene-3,6-disulfonic acid

4,5-Dihydroxy-2,7-naphthalenedisulfonic acid

Chrmotropic acid

7-Naphthalenedisulfonic acid, 4,5-dihydroxy-2

4,5-dihydroxy-7-naphthalenedisulfonic acid

chromotropic acid

4,5-dihydroxynaphthalene-2,7-disulphonic acid

1,8-dihydroxynaphthylene-3,6-disulfonic acid

2,7-Naphthalenedisulfonic acid,4,5-dihydroxy-

性质描述:

固体结晶。溶于水。

生产方法:

由T酸（1-氨基萘-3,6,8-三磺酸铵盐）转变成钠盐，再经碱熔制得。工业上作染料中间体使用时，一般用其钠盐，外观为浅灰色或灰色膏状物，变色酸含量不低于50%。纯品钠盐含2分子结晶水，CAS号为[5808-22-0]，为白色针状或叶状结晶，易溶于水，熔点>300℃。变色酸也可由4-氯-5-羟基-2,7-萘二磺酸为原料制得。

用途:

该品是染料酸性媒介深蓝的中间体。这种染料可用于羊毛织物染色，是由4-氯邻氨基苯酚重氮化后与变色酸偶合得到的。

推荐供应商

货号

品牌

产品名称

规格

包装、参考价格

详情

224277

J&K

4,5-Dihydroxy-2,7-naphthalenedisulfonic acid

99%

69元/1G; 228元/5G;

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基本信息

分子式	C₁₀H₈O₈S₂
分子量	320.30
MDL编码	MFCD00003968

安全信息

图形或危害标志
危险说明	H315 H319 H335
防范说明	P261 P264 P271 P280 P302+P352 P304+P340+P312 P305+P351+P338 P332+P313 P337+P313 P362 P403+P233

S563692

4,5-Dihydroxy-2,7-naphthalenedisulfonic acid

Aldrich^CPR

1908.94元/250MG;

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产品说明

其他说明

Please note that sigma-aldrich provides this product to early discovery researchers as part of a collection of rare and unique chemicals. sigma-aldrich does not collect analytical data for this product. Buyer assumes responsibility to confirm product identity and/or purity. All sales are final.

NOTWITHSTANDING ANY CONTRARY PROVISION CONTAINED IN SIGMA-ALDRICH'S STANDARD TERMS AND CONDITIONS OF SALE OR AN AGREEMENT BETWEEN SIGMA-ALDRICH AND BUYER, SIGMA-ALDRICH SELLS THIS PRODUCT AS-IS AND MAKES NO REPRESENTATION OR WARRANTY WHATSOEVER WITH RESPECT TO THIS PRODUCT, INCLUDING ANY (A) WARRANTY OF MERCHANTABILITY; (B) WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE; OR (C) WARRANTY AGAINST INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OF A THIRD PARTY; WHETHER ARISING BY LAW, COURSE OF DEALING, COURSE OF PERFORMANCE, USAGE OF TRADE OR OTHERWISE.

基本信息

线性分子式	C₁₀H₈O₈S₂
分子量	320.298
MDL编号	MFCD00003968

448785

Fluorochem

4,5-Dihydroxynaphthalene-2,7-disulfonic acid

95%

264元/10g; 528元/25g; 1320元/100g;

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基本信息

CAS Number	148-25-4
MDL Number	MFCD00003968

安全信息

图形或危害标志
危险性说明	H302: Harmful if swallowed. H315: Causes skin irritation. H319: Causes serious eye irritation. H335: May cause respiratory irritation.
防范说明	P233: Keep container tightly closed. P260: Do not breathe . P261: Avoid breathing . P264: Wash hands thoroughly after handling. P270: Do not eat, drink or smoke when using this product. P271: Use only outdoors or in a well-ventilated area. P280: Wear . P301 + P312: IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. P302 + P352: IF ON SKIN: Wash with plenty of soap and water. P304: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.. P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P312: Call a POISON CENTER or doctor/physician if you feel unwell. P321: Specific treatment (see relevant procedures. on this label). P330: Rinse mouth. P332 + P313: If skin irritation occurs: Get medical advice/ attention. P337 + P313: If eye irritation persists: Get medical advice/attention. P340: Remove victim to fresh air and keep at rest in a position comfortable for breathing. P362: Take off contaminated clothing and wash before reuse. P403: Store in a well-ventilated place. P403 + P233: Store in a well-ventilated place. Keep container tightly closed. P405: Store locked up. P501: Dispose of contents/container to in accordance with local regulation .