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Description
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Description: Sodium cromoglycate is a white crystalline powder. Melting point 241-242℃ (decomposes). Easily ... More ...
Description: Sodium cromoglycate is a white crystalline powder. Melting point 241-242℃ (decomposes). Easily soluble in water (100mg/ml at 20℃), insoluble in ethanol and chloroform. Hygroscopic, odorless, and easily discolors upon exposure to light.
Applications: Antihistamine, used to treat allergic asthma.
Quality Standards:
Items
Standard
Appearance
White or almost white,
hygroscopic, crystalline powder
Solubility
Soluble in water; insoluble in alcohol and in
chloroform
Identification
(1)Theinfrared
spectrum of the Sample solution is consistent with that of a similarly prepared
(2)Theretention
time of the major peak of the Sample solution corresponds to that of the
Standard solution
(3)Thegeneral
test should be complied with
Related
Substances
Cromolyn tricarboxylic acid
analog≤0.25%
2-Acetylresorcinol≤0.10%
Cromolyn related compound A≤0.10%
Cromolyn related compound B≤0.10%
Any other individual
unspecified impurity≤0.10%
Total impurities≤0.5%
Limit of Oxalaet
Theabsorbance of the sample
solution is NLT that of the standard solution (NMT 0.35% of oxalate).
Water
≤10.0%
Residual
Solvents
Ethanol≤0.5%
Heavy metals
≤0.002%
Assay
98.0~101.0%
FQA:
Q1 Can
i get some samples
A1 Yes,
we can supply the free sample, but the shipping cost be paid by our customers.
Q2 How
to start orders or make payments
A2
Proforma invoice will be sent first after confirmation of order, enclosed our
bank information. Payment by T/T, L/C or Paypal or Escrow(Alibaba).
Q3 How
to confirm the Product Quality before placing orders
A3 You
can get free samples for some products,you only need to pay the shipping cost
or arrange a courier to us and take the samples. You can send us your
product specifications and requests,we will manufacture the products according
to your requests.
Q4
What's your MOQ
A4 Our
MOQ is 1kg. But usually we accept less quantity such as 100g on the condition
that sample charge is 100% paid.
Q5 How
about delivery leadtime
A5
Delivery lead time: About 3-5 days after payment confirmed. (Chinese
holiday not included)
Q6 Is
there a discount
A6
Different quantity has different discount.
Q7 How
do you treat quality complaint
A7
First of all, our quality control will reduce the quality problem to near
zero. If there is a real quality problem caused by us, we will send you free
goods for replacement or refund your loss.
Q8 How
to contact us
A8 You
can chat with us by Trademanager,MSN&Skype Online.
You can choose your interested products and send inquiry to us.
You can dial our telephone directly or send Email to us., you will
get our reply.
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Others
Delivery Lead Time |
Supply Ability |
60 days for OEM, 7days for ready goods |
1 Kilogram |
100KG/per month |
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